Tag: nes

Chrontendo 62!

Dr. Sparkle’s epic, Sisyphean journey through the entire library of the Nintendo Famicom/NES, Chrontendo is back! This episode has the subtitle, “The games will get worse until morale improves,” and is it ever fitting. Here it is, more about it beneath:

This episode presents ten games from June of 1990, well into the glut of NES games when many companies with no business being in the games business dipped in their toes, much as they did at the end of the Atari 2600’s reign. Even though Nintendo was supposedly guiding the library with their benevolent white-gloved hand, those of us who were alive then and lived through it know better.

The games:

  • Bandit Kings of Ancient China (a.k.a.. Suikoden): Dr. S has some fun with the opening of this one, where he confuses it with a different, much later, much prettier game called Suikoden. This one is another of Koei’s many historical sim strategy games, ports of computer games. These games aren’t actually bad, but they are definitely an acquired taste, and they’ll destroy you if you aren’t prepared. I wonder how these games look internally? There doesn’t exactly seem to be a huge Koei historical strategy sim romhacking scene. Internally I imagine them being a giant maze of 8-bit math routines and text tables. If NES-era JRPGs are anything to go by, lots of menu-based games like this are riddled with subtle bugs. Someone should look into that. Someone other than me.
  • Kickle Cubicle: Also not that bad a game, a fairly charming port of an arcade puzzle game. Someone should have told Irem that no one was making good NES games around this time, because this is a highlight of the episode. Sadly it’s not to Dr. Sparkle’s tastes, but he admits it’s not really that bad. (Apparently he got beat up by Koke the Eyepatch-Wearing Chicken.)
  • Moero!! Judo Warriors: A judo sim from Jaleco’s “Moero” series (which doesn’t contain Moero Twinbee as one might think or hope). Many of the Moero sports games got localized to the US under different names (the baseball one became Bases Loaded). It’s largely a redo of an earlier Jaleco judo simulation.
  • Jeopardy! 25th Anniversary Edition: Agh, another of the avalanche of Rare-developed game show adaptions from the NES era. At least Jeopardy still exists today so you roughly know what’s going on, as opposed to the hates of Double Dare or Remote Control. No great shakes, no, but at least look at the spinning words “Anniversary Edition” on the title screen. Rare would often put that bit of unnecessary polish into their work. Despite their efforts though, this is not a game that plays well with a gamepad.
  • Heavy Shreddin’: A snowboarding game from Imagineering, it’s pretty basic.
  • Cabal: an adaption of an arcade game, programmed by Rare. (But remember, there is no cabal!) You might call it an Operation Wolf-like, but with destructible terrain. On the NES it’s not a lightgun game, even though it looks like it wishes it were one.
  • Silk Worm: Another arcade port, on the NES is lacklustre side-scrolling shooter where you can play as a helicopter or a jeep. Keep in mind, as you watch the footage of this, that Super Mario Bros. 3 came out the year before in Japan.
  • Arkista’s Ring: the cover seems to promise at last the Zelda where you play as Zelda, but no, it’s not an exploration game at all. Not really bad, but not a system highlight. As Dr. Sparkle says, the game pulls a Ghosts ‘n Goblins on you, making you compete all the levels four times at higher difficulties. Hm.
  • Rad Racer II: Pretty much a track update of the original Nasir-developed Rad Racer, and Square’s last non-RPG game for a long time, as well as their last Famicom game. Rad Racer was a modest hit when Nintendo published it for the NES, so Square probably sought to capitalize on that with this US-only release.
  • Rocket Ranger: A port of the Cinemaware computer game. Cinemaware’s gimmick was making games that mimicked the experience of movies, and this one’s no different. In actual play it’s just a minigame collection within a simple strategy framework.

And as an extra, Dr. Sparkle presents his 1990 arcade round-up. Games covered are Sega’s Alien Storm, Moonwalker, GP Rider and Columns, Atari’s Batman, Race Drivin’ and Pit Fighter, Capcom’s Mercs, 1941 Counter Attack and Super Buster Bros., Konami’s Aliens and Parodius Da!, Namco’s Final Lap 2, Irem’s Air Duel, Williams’ Smash T.V., SNK’s Beast Busters, and-oh wow!-Seibu Kaihatsu’s Raiden!

Chrontendo 68 (Youtube, one hour 28 minutes)

|tsr’s NES Archive

It’s been a long time… before Hardcore Gaming 101, before Kotaku or the Angry Video Game Nerd, before 1UP, Joystiq and a bunch of other sites still living and defunct, there was |tsr’s NES Archive. While it only lived for four years, hasn’t updated in 23 years, and all of the images are broken now (a huge shame for some of the features), it’s still online, still ready to give you their humorous take on old video games. Long may it continue beaming out its snarky message. Consider that the time between when the NES was released, 1985, and |tsr’s archive shut down, 2000, was only 15 years. And that time isn’t getting any longer, while the time since it shutdown is. I’ve said it a lot here lately, but: time is cruel.

A few notable features there:

The images, I note, are not broken so much as forbidden access. It’s possible that tsr’s web host, Atari HQ, still has them but has misconfigured the site. Atari HQ is still up, but now seems to only be an aggregator for other sites’ content. I wonder if an email to the right person might restore access to that entire swath of early web and videogaming history, or if they’re completely asleep at the switch?

More Game Map Sites

We’re still searching for old game info sites that are still up in 2023. Another couple of use are Video Game Maps, last updated in 2007 but still available, and Revned’s Video Game Maps, which saw its last edit in 2016, but is mirrored on Github.

It feels, to me, like this is what the World Wide Web should look like, flat, static HTML pages with sidebars and hyperlinks. A thing of beauty.

For the past 20 years it’s felt like any game information you could ever hope to find is out there on the World Wide Web, somewhere, but as both the people who grew up playing these games grow old, and the drive and motivation to start and maintain websites has diminished with the popularity of social media, this is increasingly no longer the case. Sometimes you can find vanished websites on the Wayback Machine, but it’s a lot harder to find things there, Wayback often misses images, their web archives are often incomplete, and server-side scripts are broken by archiving so dynamic content is usually dead, the page contents locked in the state it was at when the time of archival.

VGM: Maps and Strategies! and Revned’s Video Game Maps

NES Maps and SNES Maps

I’ve banged this drum a lot lately it feels like, but I have to reemphasize that the internet is not forever, and as Ryan North has told us lately, even the most popular website in the world is one missed bill from disappearing, probably forever. As this happens more and more often, big and well-funded content hosts like Fandom and Github persist, while smaller, independent information sources tend to fall away, which results in a rich-get-richer feedback loop. Independent sources of accurate information are so important, no matter the subject. It is difficult to fault anyone unwilling to keep content up and updated for a large portion of their lives, but whenever it happens, I appreciate it.

Before the death of Flash, their Zelda map used it to provide an interactive browsing experience that is sadly defunct now. This PNG version is still great, though.

So I’ve been trying to celebrate the best, most long-lived websites out there, and NES Maps, and its sister site SNES Maps, qualifies, going back to around 2006. That’s 17 years! And it’s still there, quietly providing maps of just about any NES game you might want to find information on.

It’s not perfect. Their labeled maps of Castlevania III, I discovered just now, are incomplete, cutting off after Block 5, promising that more is coming soon for who knows how many years. But most other games have complete maps, including a number of Japanese-only title. It’s truly a great resource, and I hope they can figure out a way to keep it going for the long term.

NES Maps and SNES Maps

Chrontendo 61!

Does it seem to you like there’s been a lot of Youtube videos here lately? It’s an unfortunate fact that a lot of the information and articles that once would have been in informative and quick-reading blog posts are now presented to the internet in a format that requires video editing software to create and 15+ minutes of your time to watch.

However, with Chrontendo it’s worth it. Dr. Sparkle’s epic-length tour through the entire run of the Famicom’s and NES’s libraries. Most episodes are an hour or longer, but you definitely get your time’s worth by watching them. And like U Can Beat Video Games, it’s nice just to have running in the background while you do other things.

We linked to Chrontendo #60 last June, titled “The Most Perverted Episode.” Sadly Chrontendo #61 doesn’t come with any titillation factor; it’s title is “Not really worth the wait.” It’s a series of games ranging from pretty bland to outright terrible. Covered are the months of May and June 1990, plus one game that’s a holdover from April. Within the video is footage and commentary on:

  • Castle Quest, which is not the same game as Castlequest in the U.S., which was a renamed localization of a game called Castle Excellent in Japan. It’s a turn-based strategy game that’s like Chess against a computer opponent, but with a random factor.
  • Ys II: Ancient Ys Vanished: The Final Chapter, which isn’t so bad, but was greatly overshadowed by the must more impressive Turbografx CD version released around the same time.
  • Baken Hissou Gaku: Gate In, yet another horse racing sim, this one with an extremely bland presentation.
  • Jajamaru Gekimaden: Maboroshi no Kinmajou, a so-so ninja adventure/Zelda clone.
  • Snake’s Revenge, the disowned sequel to Metal Gear that Hideo Kojima didn’t work on, a game that some people like but Dr. Sparkle doesn’t. I’ll say it’s more polished than NES Metal Gear, at least.
  • Remote Control, a video version of a nearly forgotten MTV game show that couldn’t use any of the celebrity likenesses from the show.
  • Chip ‘n Dale: Rescue Rangers, another of the Disney Afternoon tie-in games. Dr. Sparkle admits it’s not bad, and it’s probably the best game of the episode, but is only really interesting when played co-op with two players. There’s a fairly scandalous piece of Gadget fanart here, scavenged from the aptly-named halls of DeviantArt.
  • Rally Bike, a port of a Taito arcade motorcycle game with much less polish than the original. I note that this game was ported by one of my un-favorite developers, Visco.
  • Battle Fleet, another turn-based strategy game, with a naval theme.
  • And S.C.A.T.: Special Cybernetic Attack Team, a game that plays a bit like Capcom’s Forgotten Worlds, but without that game’s hallucinatory visuals.

Chrontendo #61 (Youtube, 1 hour and 1 minute) – archives – previously

Behind the Code Examines The NES Punch-Out!! Boxer Engine

Here’s another of those deep-dive NES internal videos from Behind the Code, possibly the most complex one they’ve done to date. Most game engines, when you examine their basic logic, are basically physics simulations, with some AI included to determine how actors behave.

Not so with the Punch-Out!! games. They are essentially entirely different kinds of games from that. You have certain things you can do moment to moment, and opposing boxers do too. Each of those opponents basically runs a big script, made out of byte code, that determines their behavior throughout each round of each fight. I am struck both by the simplicity (no need to simulate gravity) and the complexity (boxers take all kinds of things into account) of the system.

One of the interesting things shown is that the engine can affect more than just the boxers, but can also subtly affect the crowd, which is how the previously-revealed fact that a specific camera person in the crowd uses his flash right at the moment the player must counter Bald Bull’s charge move. It turns out that this isn’t the only instance of this happening in the game!

You don’t need to know 6502 assembly code to get what the narrator is talking about, but a lot of code is shown, so those of you who understand it may get a bit more out of it. Here are a few basics to help you follow along.

The 6502 has only three registers (bits of memory internal to the CPU that can be accessed quickly), the Accumulator (sometimes called just A), the X register, and the Y register. Each is only one byte long. The Accumulator is by far the most flexible, but all three are general-purpose registers. The most common instructions are Loads (LDA, LDX, LDY), Stores (STA, STX, STY), Transfers between registers (TAX, TAY), Incrementing and Decrementing (INX, INY, DEX, DEY), Adding (ADC), Subtracting (SBC), Comparing (CMP), Branches (some of them, Branch Not-Equal to Zero: BNE, Branch Equal to Zero: BEQ, Branch of Carry Set: BCS, Branch on Carry Clear: BCC), Jump (JMP), Jump to Subroutine (JSR), and Return from Subroutine (RTS). While some instructions are just one byte long, the longest any 6502 instruction can be is three bytes, and the opcode (the command itself) is always just one.

(I wrote all of that from memory. I figured, I have all of this in my head from my coding youth, I might as well use some of it.)

The 6502 can only address 64K of memory, so often systems will use bank switching to connect various memories to it within that space. The great majority of NES/Famicom games had to do this. Punch-Out!! was unique on the NES in that it was the only game to use Nintendo’s MMC2 chip. (I wonder if the chip was designed ahead of time, and they made this game as an excuse to use it?) Punch-Out!! uses MMC2 to bank in each boxer’s large data script as needed.

Behind The Code: How Do Boxers Work in Mike Tyson’s Punch-Out!!? (Youtube, 20 minutes)

U Can Beat Video Games: Dragon Warrior III

I’ve been waiting for this one for a long time! U Can Beat Video Games has finally covered the best NES Dragon Warrior, the third game in the series. It was Dragon Quest III in Japan, due to some trademark issue with TSR I think. IV isn’t bad, and has fun characters, but there aren’t as many variant strategies in it, and in the last chapter you don’t get to control the actions of most of your party members. DWIII always gives you full control of your characters, plus it lets you create characters with names and classes of your choosing, meaning, like the first Final Fantasy, you can make completely custom parties and play the game in many different ways. It was the game that spawned the urban legend that the Japanese government requested that Enix release Dragon Quest games on weekends, because so many people ditched work to stand in line to buy it. (I don’t know if it’s true, but the story has often been passed around.)

It’s also the first Dragon Quest/Warrior game that allows for class changing, which resets a character to Level 1 (similar to an human AD&D character who dual-classed), but only halves their stats, and lets them keep all the spells they learned. Since they’re Level 1 again, they gain levels very rapidly for a while, allowing them to quickly surpass their previous heights. It’s kind of an early version of the “prestige” mode of clicker games, where you reset all your progress in exchange for faster progress afterward!

It also has a cool story that eventually connects with the first two games, and has a good variety of activity, including growing a town from scratch like 25 years before Breath of the Wild and betting on monster fights! It’s also got all the challenge of the early Dragon Quest games, with later monsters who can cast instant death spells on everyone in your party at once, as well as doing other horrible things to them.

Because Dragon Warrior III doesn’t pull its punches against the player, the various tricks that the narrator does to use the engine’s bugs against it feel like playing fair, and yet, even with full knowledge of the game and multiple player leveling and cash gaining strategies he still has problems once in a while. It’s a really tough game!

This may end up being U Can Beat Video Games’ magnum opus, at least of the NES era, it’s a really long game that takes three videos, of almost 12 hours total length, to cover in its entirety! Here they are:

EPISODE ONE: Creating Your Party Through to Getting the Ship (3 hours, 59 minutes)

EPISODE TWO: Getting the Ship through to Defeating Archfiend Baramos (4 hours, 22 minutes)

EPISODE THREE: The Dark World to the Final Boss, Plus Extras (3 hours, 35 minutes)

Please enjoy, and Rubiss help us all!

Romhack Thursday: Gradius AC 2000 for NES

On Romhack Thursdays, we bring you interesting finds from the world of game modifications.

Gradius for Famicom and NES is a well above-average port of a game for very different hardware than the arcade original. It was good enough that it was converted right back into arcade game, released for Nintendo’s Unisystem arcade hardware as Vs. Gradius. Graphically and aurally, it is quite similar to the arcade game.

It’s similar, but not identical. Now this hack doesn’t change the major downgrades from arcade Gradius. There is no vertical scroll in levels two or three, and you still can only have two Options at once. But in a variety of subtle ways, the game looks a bit nicer. In particular, the game’s text fonts being changed from the boring old font used on the NES back to the arcade’s snazzy line-drawing affair is a nice change.

The original version of this is quite an old hack, created back in 2000, but it has been periodically updated over the years, most recently changed in 2018. That’s a long period of support for a romhack!

Gradius AC 2000, by Kaison (romhacking.net)

Super Mario Bros Level Glitches

The Youtube channel Retro Game Mechanics has done a series of three videos on glitches in Super Mario Bros. One involves using the NES game Tennis, which has a certain property of its code that allows you to load all kinds of funky levels in SMB.

They’re all interesting, but the one that floats my particular boat is the third, which turns into a deep dive in the compressed manner that Super Mario Bros. stores its levels in ROM, and uses to draw them during play in real time.

1. Access Glitch Worlds in Super Mario Bros. via NES Tennis (13 minutes)

2. Exploring Glitch Level Pointers In Super Mario Bros. (15 minutes)

3. Super Mario Bros. Glitch Levels Explained (30 minutes — this is the one embedded above)

Romhack Thursday: Ultima Exodus Remastered

On Romhack Thursdays, we bring you interesting finds from the world of game modifications.

They have fallen into obscurity in the intervening decades, but it used to be that the Ultima games were some of the biggest RPGs around, and many still have fond memories of them. The story of the rise and fall of Origin Systems, once one of the biggest game publishers, and how now they’re just another of the hundred ignored lines on EA’s balance sheet, is not our business here today, but instead that of one fan’s effort to improve one of the less faithful adaptations: the NES version of Ultima Exodus.

Ultima and Ultima II (and their predecessor Akalabeth) were popular, but Ultima III was the first megahit version of the game, that could be considered to stand up today. Ultima I was pretty small, and Ultima II had a lot of crazy elements like space travel. Ultima III has a much more cohesive game world, a more detailed quest, and generally feels a lot more like what we would consider an RPG game now. Later games would build off of it and become even more popular, especially Ultima IV with its detailed morality system, and Ultima VII with its vast game world, depth of NPC interaction, and many system and UI improvements.

This thief looks a lot cooler here than they did in the NES original!

Back to Ultima III. One of its best-selling versions was the Famicom version in Japan, which had a bit of a media blitz around its release. Both the Ultima and Wizardry games had something of a second life on Japanese computer systems and consoles, where they would go on to sell millions of copies more. While EA’s ownership and neglect have meant that Ultima is mostly gone and forgotten*, in Japan new Wizardry games continue to be made, hewing to that series’ original dungeon crawl aesthetic.

* This is, honestly, partly to series creator Richard Garriott’s ownership of several important characters, meaning both parties have to agree to the other’s vision for any further official Ultima game to be made. And Garriott seems to be chasing fads lately; his most recent idea for a game utilizes that bane of all game design concepts, NFTs.

The font especially is much improved, over the very bland type used before.

So now you have a little idea of what Ultima is. The Famicom/NES version was a hit in Japan, but it differs from the computer version in many ways. This was pretty much the norm for the many Japanese-made Famicom adaptations of Western games. An article could be usefully written on all the ways Famicom ports of RPGs differ from their originals. Maybe later.

The character portraits are especially nice!

The point of this romhack is to change the NES version of Ultima III: Exodus so it more matches up with the computer versions. It uses its own patching system, so Romhacking.net’s web-based patching system won’t be of use.

So many little things have changed in this version that it’s hard to talk about! At the very least, the graphics have received a complete overhaul. The cartoony figures of the original, which were pretty silly even back then, look a lot more appropriate for a series with the stature and legacy of classic Ultima games.

Hey Chuckles!

NES Ultima Exodus is also notorious for a number of significant bugs, including the absence of an important clue, it being impossible to cancel a character’s turn without wasting it, poorly differentiated character classes, and the lack of some of the monsters of the computer version. These have been fixed in this version. Some other niceties have been added, including character portraits for the people you talk to, which is really going above and beyond for a game like this!

Seriously now: why haven’t the Ultima games been remade yet? Everything else has been remade, why not Ultima? Money is being left on the table!

It’s pretty much become the definitive console release of this landmark of computer RPG gaming! You should check it out if you have an interest in these things.

Romhack Thursday: Astro Smash ‘N’ Blast!

On Romhack Thursdays, we bring you interesting finds from the world of game modifications.

Most of the things we post here are game hacks. That is, something that has been modified from a published game. Hacking games is not illegal, but the process that some people usually use to obtain the roms themselves may be somewhat questionable. Well not for the subject of this week’s article: it’s 100% homebrew, created from scratch and unencumbered by such considerations! It runs on NES hardware (or an NES emulator), but technically speaking what we have here is more of an indie game on classic console hardware more than a hack.

It’s also an unusual subject for a 2022 indie game. You’ll find all kinds of hacks to, say, put silly characters into Super Mario Bros., but a remake of an Intellivision game, and one with an Atari port that is very much its equal, and porting those games to the NES-that’s unusual enough to merit discussion, even if the game itself is very simple.

Astrosmash! (with the exclamation point) was a very popular game for the Intellivision. I heard it was originally intended to be an Asteroids-style game, with rocks that split into pieces when shot, but turned out to be interesting translated to a Space Invaders-style missile base game, where your ship is stuck to the bottom of the screen shooting at targets falling from above. Astroblast! was released by M-Network (Mattel’s label for publishing games for competing systems), and was a very similar game for the Atari VCS/2600, but actually improved on the original in two ways: it can be played with either the joystick or paddle controller. It’s the only game for the VCS like that! Both control schemes are fun, although experts can probably play much better with the paddle, due to both its faster and more precise movement. And, it’s extremely fast! The sheer pace of the VCS Astroblast is so much greater than the Intellivision Astrosmash that it kind of demonstrates why VCS games tend to be more engaging than Intellivision games: it wastes no time with an easy ramp up in difficulty, but starts faster than almost any other game, and only gets harder from there. It’s simply exhilarating!

The way it works is like this. Rocks, Pulsars and Spinners fall from the sky, and your ship tries to shoot them before they hit the ground. You get points for shooting things, but lose points for things that get past you. Rocks come in two sizes (smaller ones have higher point values), but only kill you if they hit you. Big rocks break apart into small rocks when stuck. Pulsars home in on you as they fall, which makes it more likely they’ll hit you, but also means they’re easier to shoot. The most dangerous items plummeting towards you though, by far, are the Spinners. You must shoot Spinners, you don’t just lose points if one lands but a life. Small Spinners are your greatest enemy, since they’re also hard to hit. There’s also UFOs that harass you, which pass by horizontally and drop bombs on you.

Here is a short game of Astroblast, to give you a sense of how it works. Notice how fast it is. Know that this is nowhere near as fast as it gets. It is my kind of game:

As you score gets higher, the background color changes, and the game gets faster. You get extra lives every 1,000 points, and you start with ten, far more generous than most arcade-style skill tests from that time, but you need all those lives because you’re constantly dying. Difficulty is determined by score, the more points you have the faster it gets. Because you lose points as well as gain them, and because the speed is balanced right at the edge of human reaction time, players tend to play until they reach a difficulty score boundary, where only nearly-inhuman focus, and lots of practice, can push you beyond it. Astroblast will push your playing skills to the very limits.

Astro Smash ‘N’ Blast is an homage to these two games. It takes the same form, your ship at the bottom shoots upwards at an endless wave of plummeting targets, Rocks, Pulsars and Spinners. (There are no UFOs in this version.) There’s fewer things falling, but the game is a bit more precise about hitting small targets. Pressing the Select button turns on autofire, which you’ll probably want to use, to avoid compressing your thumb tissue into a singularity with rapid frantic tapping.

Rocks don’t split in two in this version, but otherwise it plays a lot like VCS Astroblast. Small Spinners are particularly difficult targets to hit, and must be aimed at precisely.

This version takes on a bit of inspiration from Pac-Man CE, in that in addition to having limited lives, you have a time limit. You can earn extra time by hitting +30 second targets that pass by horizontally, and you can regain hits on your ship by hitting passing 1UPs. These are the only bonuses; unlike the originals, you don’t get extra ships from points at all. Although the game ends if you run out of time, chances are great that you’re going to lose all five of your lives before then.

As in Astrosmash/blast, as you ascend to tougher difficulties, the screen’s background color changes. You probably won’t see the later levels though without a lot of practice. Astro Smash ‘N’ Blast offers a level of challenge rarely seen in most games. I prefer games like this, with a strong element of chaos, to more typical modern examples of high challenge, like bullet hell shooters and rhythm games. I think the essence of the super fast video game is in randomness, not memorizing levels and playing them almost by rote but in reacting instantly to dynamic situations, and that’s why I like all the Astro-style games.

I am left wondering what inspired Double Z to look to old Intellivision and Atari games for inspiration. They were released when I was a small child; had Double Z even been born yet when the Astro games were on store shelves? For whatever reason they made it, I am glad they did. Games like this don’t come around often any more, and I intend to put in some solid practice on it.

Astro Smash ‘N’ Blast, for NES (romhacking.net)

The Issues With NES Teenage Mutant Ninja Turtles

The title refers to the original NES TMNT, not the arcade version or the NES game based on it. This is the version that Konami released under their Ultra label. It sold well (real well!) but is widely considered an inferior game for a number of reasons. Those reasons are the subject of these three videos, from Youtube channel Displaced Gamers. I recommend them, even if I think every place they say gamer it would be more proper to say player.

The first video:

In a long and difficult game, one of the hardest sections comes relatively early. The only swimming section in the entire game, players must maneuver their supposedly-aquatic surrogates through a difficult course that has imprecise movement, water currents, high damage, instant kill hazards, a strict time limit, and, as the video shows, buggy implementation. Many players in the NES era gave up at this point, which is rather a shame considering it’s only at the end of level two. This video examines the code and demonstrates why it’s so challenging, and how it could be made fairer.

The second video:

TMNT has notoriously floaty jumps, a low frame rate, and a fairly weird implementation of gravity. Any platform game that allows players to adjust their jump height according to how long the hold down the jump button is fudging its physics behind the scenes, but TMNT does it rather poorly.

The third video:

Displaced Gamers examines additional problems with the game’s timing, particular with that of its input reading and attack animation. Like the other two videos, they suggest code changes (sometimes in the form of Game Genie codes) that fix the problem, if you happen to have a fondness for 6502 assembly. (I do!)

If you’d like to try NES Teenage Mutant Turtles, it’s included in the “Cowabunga Collection” that was released for Switch, Xbox X/S and Playstations 4 and 5. Fortunately, it also includes twelve much more playable titles.