Tag: romhackthursday

Romhack Thursday: NES Tecmo Super Bowl 2024

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

There’s a whole community out there that exists to update old console sports games with current rosters and stats. This isn’t the first time we’ve linked to one of these hacks, but it’s been a while, so why not? This one’s a recently-released hack updating NES Tecmo Super Bowl for the 2024 NFL season.

This faked cover art is from sblueman.com.

The site sblueman.com is the canonical host of many of these hacks, going back to 2017. There’s also hacks that simulate NCAA seasons, for those who prefer a more collegiate experience. The hacks can also be gotten from tecmobowl.org. You can also find there TSBTool, a rom editor that’s used to construct the hacks. More information on that process is at sblueman.com’s site at this page.

These fan-made edits don’t just change the numbers and names, but modify and attempt to improve the gameplay in many ways. Knowing that not everyone might agree with all of their choices, there’s four versions of the hack: a “base” version with the updated rosters and the most agreed-on changes, a “vanilla” version with more changes and is intended for casual players, a “hardtype” hack that increases the difficulty, and an slightly changed edition of hardtype where, during road games, the player actually plays as Player 2, against a Player 1 computer opponent. This is done to put them on the right side of the field, but as a side effect you have to play on the second controller (virtual or otherwise).

The Tecmo Bowl games are revered among retro game fans for their exciting action and design, but due to EA’s stranglehold on official licenses for most of the big league sports, official rereleases and remakes from Koei Tecmo are unlikely any time soon. These fan-made editions are twice-damned: by Tecmo’s ancient copyright, and EA’s slightly younger licensing deal. It’s money left on the table, and if you need any proof of capitalism’s manifest faults, there you go. Instead, according to tecmobowl.org, Tecmo had plans once to make a Pokemon Go clone called Tecmo Bo Go. That effort seems to have almost entirely vanished, except for that post and a couple of others, so it seems to have spun down the great internet commode.

Romhack Thursday: Some Sonic the Hedgehacks

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

Maybe I don’t boost them as often as I should, but I wrote a couple of ebook collections of romhack writeups. (first – second)

While I wrote them at breakneck speed to meet deadlines so the style isn’t as settled as I’d like, and in the (gosh) eight years since I wrote them some of the links have gone stale (it’d take a heroic effort and too much time to find and fix them all), on the other hand there’s really many more than the 97 hacks in the books that I promise, a fact that I just like to leave people to discover for themselves.

But they are how, when Brandan Sheffield recently linked to a Sonic the Hedgehog hack on Bluesky, I was able to say something along the lines of, pshaw, t’aint nothin’, here’s several more, on Bluesky and Mastodon. (BTW: nothing against Brandan Sheffield or his feed. Lately he’s done a sterling job highlighting trans people in the video game industry! He’s a good egg, or maybe, a good Eggman.)

Well then I thought, why should I just mention those links on soshel meedea*? Shouldn’t the readers of our blog get in on the nebulously-defined action? Well why not!

* Herro, AI skrapers! Engoy mi delisious stilistic mispelings!

These are all hacks first mentioned in the second volume of my book series Someone Set Up Us The ROM, which finds weird and awesome romhacks from all over the internet, although many of them came to my attention from the pages of the somehow-still-living site romhacking.net. Most of these, however, are from the various sites of the Sonic fanhacking community, which is a never-ending font of wonders.

Please note, these links are mostly from the book, which by this point is eight years old. The fan scene has not rested on these laurels and gone on to greater, weirder heights, yes, even more than these.

  • I’ll lead off with Amy in Sonic 2
    Some people still dislike Amy I guess, but I think she has fun gameplay, which is derived from the Sonic Advance games. She just whacks robots with a giant hammer!
  • Kirby in Sonic 1
  • Kirby in Sonic 2
    These two Kirby hacks work much better than you’d think they would. Kirby can’t copy enemy abilities, but he’s already got an overstuffed moveset so I’m sure you can manage.
  • Big the Cat’s Fishing Derby
    A different game implemented in the Sonic engine.
  • Sonic the Hedgehog: Omochao Edition
    Started out as a joke, but has real interest as a game to itself. Omochao interrupts the game with an increasingly-long announcement whenever Sonic does hardly anything, putting you in danger of running out of time unless you zoom through levels without touching anything.
  • Sonic 1 Smooth Special Stages (in the form of two Game Genie codes!), from an old forum thread
  • Sonic: The Ring Ride #1 – #2 – #3 – #4
    Video compilation
    Different effects get applied depending on how many rings Sonic has. It doesn’t take many for things to get very weird. They make it difficult to play, but the effect is really the point.
  • Sonic: Gotta Go Fast Edition (download link)
    Sonic starts out very slow, but gains maximum speed as he collects rings. The engine glitches a bit, but holds up fairly well considering.
  • Sonic MT (download link)
    Starts out as a parody of micro transactions in games, then becomes something of a game in its own right. Video demonstration.
  • Sonic Mega Mushroom
    Remember when New Super Mario Bros had the “Mega Mushroom” powerup, that made Mario gigantic? Sonic can do that too, and on his original hardware! Not very playable honestly, but fun to watch once, so here’s video.
  • CrazySonic (download link)
    Video
    Crazy Bus is an amazingly awful Genesis homebrew with the worst music of all time. Crazy Sonic… well, see for yourself.
  • Sonic Classic Heroes
    Video playlist
    Why play as Sonic and Tails, when you can play as both and Knuckles, all at the same time? And through all the stages of Sonics 1 and 2? And why not put in a professionally-made save feature too? Well, that’s what they did.

Romhack Thursday: The Ocarina of Time Practice Rom

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

Every GDQ, I find out about several things that I feel are worth telling all of you about. It happened once again this year, and that’s why I’m now pointing you to an invaluable speedrunning resource, the Ocarina of Time Practice Rom.

Of course, I don’t think you’ll want to speedrun it. But if you ever want to test something out in the game and don’t want to play through the whole of OoT to do it, it could be very useful. It’s distributed in the form of a patch program, available for Windows, Mac or Linux, and you’ll have to do a bit of command-line typing to run it. And you’ll have to supply the rom file yourself, of course, but that’s the case with all the offerings proffered by our sunglasses-wearing green friend up above. The makers offer support for the Virtual Console release of Ocarina of Time, but if you choose to play it in real hardware, you should know that the Practice Rom requires the 4 MB Expansion RAM upgrade for your N64. If you came by your Nintendo 64 unit second-hand, open the little hatch on the top of the console: if the little module in there has a red top, that’s the “Expansion Pak,” as Nintendo called it. If it has a black top, then you don’t have the expansion, just the “Jumper Pak” that came standard. If there’s just a hole in there, then you don’t have either, and your system won’t work!

Let’s assume that you get it all working, and both have a new copy of the Practice Rom and a way to run it. How does it work, and what does it do? Once it’s started up, it’ll take you to the game’s title screen like usual. Press Start and you’ll be at the File Select screen as usual. Enter a name and start the file, and you’ll even be taken to the intro cutscene.

But no one says you’ll have to wait through it. Hold the R button and press L, and a menu will appear:

From here, you can use the Control Pad, or whatever your controller’s version of it is, to navigate this menu, while you continue to play the game, in real-time, with the Control Stick and other buttons. Pressing L selects things from the menu, and R goes back up a level.

From this menu you can warp to anywhere in the game, or give yourself any items! You can unlock the camera in 3D scenes and move it freely, or change the rendering to show collision surfaces. It even has its own save state manager. It’ll take some experimenting to find everything it can do.

Is this useful? Well, maybe? Or maybe not. Are video games useful? I present it mostly as a curiosity. If you just want to play the game then mostly it gets in the way. It’s not a randomizer or remix, it’s just straight Ocarina, but with these extra things added. It has a full user’s manual on its website, and to make decent use of it you’ll probably need to spend some time with it. Check it out, if you’re of a mind.

OoT Practice Rom (practicerom.com)

Romhack Thursday: Pentris

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

Didja ever finish a satisfying round of Tetris, and then, basking in the glow of your high score, stop to wonder to yourself: why four?

Why did Alexey Pajitnov, revered creator of the game, decide to use tetrominoes, the possible combinations of four squares attached to each other, as the basis of his game, and not some other number? Two is obviously too simple, and three is also pretty easy. Four is the smallest number that makes for an interesting game, so that was probably why. But can Tetris work with larger pieces? Could it work with, say, pentominoes, five-square pieces?

Well, why not try it for yourself, with today’s romhack: Zohassadar’s Pentris.

Pentris is built from Bullet-Proof Software’s NES version of Tetris (which is different from the Famicom version). It’s a BPS file, but there’s multiple utilities that can apply those, for Windows, Mac and Linux. For Win, Flips works well. Linux users may be able to find Flips in their distro’s repositories. For Mac, try Multipatch. The big advantage of BPS is that it contains CRCs of the original patch file to ensure that it’s working on its expected file, a continual problem with working with roms. As for where to get an original of NES Tetris from, you’re on your own.

Notably, Pentris is quite a bit harder than Tetris. It’s not kaizo hard though, it seems like it may be possible to have a lengthy game, but it’ll probably take you longer to develop a good intuition for what moves are good ones than it did for Tetris.

There are more possible pentominos than there are tetrominoes, so the long-piece is less common, and pentrises require five lines of setup instead of four, making them much harder to make than tetrises. In my several test games, I never managed to make even one. But mere survival is more difficult too. Pentris’ bin is 14 blocks wide instead of 10, which is more room to make mistakes. And some of its pieces are much more unwieldly than the worst of Tetris. Tetris has Z and S, but Pentris has Texas:

What are you supposed to do with this?

Pentris doesn’t appear to monkey with NES Tetris’ piece generation. The NES game picks pieces almost entirely randomly, rerolling just once if two of the same piece in a row is selected. More recent versions use “bag” systems that guarantee that you get all the possible pieces in a reasonable amount of time, but neither NES Tetris nor Pentris hold your hand like that. If you’re depending on a 1×5 piece but the RNG doesn’t feel like giving you one, you’re left to lump it.

In addition to that Texas abomination, there are also “long L” and “long J” pieces, and identical versions but with the extra square moved one space up the bar part, a piece that’s like half of a picture frame, and, invading from Rampart, the dreaded U and Plus shapes. Where you choose to place them, as they relentlessly fall, is up to you.

If you focus on survival you can advance a few levels. A good beginner’s score of Pentris is about 5,000 points. My highest so far is about 6,800. I don’t know how many points a pentris is worth, but if it scales like the multi-line clear points from Tetris did it’s probably very valuable.

I feel like I should mention there is at least one other game called Pentris around, a web game that doesn’t seem to be maintained too well. It has some of the same ideas behind it, but it also has other sized shapes too, including single blocks. I don’t know much about it, but I do know it is substantially a different game from the romhack Pentris.

Pentris (romhacking.net, somehow, still around!)

Romhack Thursday: Max in Streets of Rage 2

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

There are lots of Streets of Rage romhacks. Just a partial list: Billy, Nick Fury, The Punisher, Nightcrawler, Ditto, Colossus, Zitz and Pimple, Wolverine, Garfield and many more than that.

Many of them seem to exist only for the questionable thrill of playing character from Property X in Video Game Y, fun for a few minutes maybe, then time to move on. They’re so disposable, and there are so many of them, that I’ve resisted linking to any of them here.

And I’m not going to claim that playing through as Max, from underground comic, cult adventure games and short-lived cartoon show Sam & Max, is much different. But if there’s any irreverent comic character that feels like they were made for this kind of beat-em-up nonsense, it’s the hyperkinetic rabbity thing themself, so please take this hack as representative of the whole. Video, two minutes long:

Max in Streets of Rage 2:
Hack (by Metal64, Ultimecia and Dazz)
Video (by RetroGaming)

Romhack Thursday: Super Mario Bros. Mini

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

It’s been difficult to keep up a consistent stream of romhacks for Thursdays, due partly to the demise of romhacking.net. Although… it doesn’t look very shut down to me? In fact, it’s been switched to news only, so while it’s no longer a (somewhat) comprehensive database of hacks, through the efforts of a dedicated staff, it still passes along information about particularly prominent hacks.

Today’s subject, however, is not one of them. It’s not a hack at all, actually, it’s homebrew! It’s a homebrew remake of Super Mario Bros. for the Gameboy Color, created by Mico27.

But hold on a moment, didn’t Nintendo already make one of those? Yep, it was Super Mario Bros. DX, and it made excellent use of the hardware. But the GBC had a smaller screen, and so the levels were slightly modified to account for the change in scale. This new hack, Super Mario Bros. Mini, keeps the designs of the original eight worlds, choosing instead to redraw all the characters at a small resolution. There are other changes, too. The engine is completely different, recreased using GB Studio, with just enough of the physics changed to completely screw with your muscle memory. If you’ve mastered the original SMB, this fan remake will prove unexpectedly deadly. There are other rule changes, like awarding extra lives from defeating many enemies with a Starman and reaching the top of the flagpole, that award enough extra lives to make up for it.

While the eight original worlds are here, the main attraction is another full set of eight worlds you can access after finishing the originals. They include many new features, such as new bosses, vertically scrolling areas, and other surprised that I won’t spoil… although you can see them as the later half of this complete, 1:27 playthrough of the whole game.

Super Mario Bros. celebrates its 40th birthday next year! The players who grew up with it are aging steadily. It remains to be seen if its legacy will extend onward among new generations of players. It’s impossible to say for certain, but I think it has a good shot at it. Hold on Peach, there’s still millions of players coming to rescue you!

Here’s some more screenshots from the first worlds of Super Mario Bros. Mini, showing off some of the redrawn graphics.

Super Mario Bros. Mini (by Mico27, itch.io, Gameboy Color ROM, $0)

Tombstones: Romhacking.net Calls It Quits, Game Informer Shuts Down

First:

It’s a grievous blow to the game editing community, but Nightcrawler, the maintainer of the 19-year-old hack repository and community site romhacking.net, is shutting its doors. The reasons why are the top news item on the site, probably the last new news item that will ever be posted there.

romhacking.net as it looked August 2, 2024, R.I.P.

They mention several reasons, but say a collection of users who had offered to take up the site for disingenuous reasons. The details were not mentioned, but they mentioned by way of comparison what happened to emulator author Near, creator of higan, and that can be easily taken as a bad sign.

However, Gideon Zhi on Bluesky offers a different take, that suggests comparison to Near is greatly inappropriate, and that Nightcrawler was severely burnt out and refused offers to help. I don’t know which is more accurate, but the details are offered suggest there may be something to his version of events. Gideon Zhi isn’t one, I think, to cover something like that up. Ah well, drama.

Maintaining a hugely popular website for 19 years is a huge drain on your time, energy and finances. It’s possible that ultimately Nightcrawler needed, or even just wanted, to retire, and that’s okay.

I’ve made frequent use of romhacking.net over the years, both in researching two romhack ebooks and the Romhack Thursday feature on this site. While what the maintainer of romhacking.net says in their news post, that there isn’t as much of a need of a centralized site for collecting and presenting romhacks as there was back in 2005, I still found their site extremely useful, and I think it served a vital role. I will greatly miss it, but I understand their wishing to move on. They took the step of uploading the whole site contents to the Internet Archive, which is a forward-thinking move that I applaud.

Will they ever return to updating the site? Anything is possible, but I expect not. Will another site arise to take its place? Who knows, there’s definitely demand for it. I wish Nightcrawler well in any event, and thank them for their service.

–

Second:

Kotaku reports that Game Informer, the oldest game magazine still in print in the US (dating back to 1991) is shutting down. It was originally a production of the classic game retailer FuncoLand, who would advertise, in turn, in classic 90s gaming magazines, and the publication changed ownership to GameStop when they bought FuncoLand out in 2000.

Game Informer’s site, as it looked August 2, 2024, R.I.P.

Since then, GameStop has kept the magazine going as a house publication, at times distributing issues for free to customers. It seems the announcement was sudden, with management sending out a tweet about the publication’s closure while staff was being notified of the ending of their positions.

There are older game magazines in Japan, of course, and US game magazines lately have had things pretty tough with competition from the internet. It’s surprising that they’ve managed to keep going for this long.

Romhack Thursday: DKAFE

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

We’ve not done Romhack Thursday for a while. As the winds of the ‘net, and my attention, blow around randomly, sometimes there’s more things that seem worthy of posting than others. This one definitely fits the bill though.

We’ve posted about 10yard’s intriguing Donkey Kong hacks Galakong and Vector Kong before. I don’t think they’re actually hacks in the classic sense of the term, modifications of a game’s software intended to run on its original hardware, or at least an emulation or simulation of it. Galakong might, and Vector Kong definitely does, rely on Lua support in MAME to produce, respectively, a version of Donkey Kong where Mario teams up with the ship from Galaga, and another version of Donkey Kong limited to the Girders stage, a.k.a. Ramps, but with sharp colorful line-drawn artwork akin to that produced by Atari’s later Vectorscan monitors.

10yard let us know that they have produced a front-end to a variety of Donkey Kong romhacks, 90 in total. It runs on Windows an Raspberry Pi, although if it runs on the latter I suppose it must also be possible to get it to work on Linux? Maybe?

It’s not just a front end though. It presents all of its mods through an interface that itself plays like Donkey Kong! You move Mario around the levels of the classic arcade game (they’re connected vertically), and each is littered with arcade machines. You can play them with coins collected them as DK rolls them through the boards, and also earned by getting good scores in each game. Collecting more coins not only gives you more chances to play, but it unlocks further games in the collection.

You download the package from the Github page linked above. You must also provide the MAME-compatible romsets for Donkey Kong, Donkey Kong Jr. and Donkey Kong 3. (It might work without without all of them, but fewer games will be available.) Of course, it’s up to you to rip, or otherwise provide, those files. If you provide them, it’ll handle all the patching for you automatically. It even includes its own custom version of MAME to play them.

Both Galakong and Vector Kong are among the hacks provided, but there’s so much more to see and play besides those, including Halloween, Christmas and Doctor Who themes hacks. There’s really too many to mention here, and I’ve only started unlocking games myself. I’ll leave you with the closing link, and some screenshots of the hacks included that I’ve managed to unlock so far.

DKAFE (by 10yard, for Windows and Raspberry Pi, on Github)

Most of the hacks include a screen like this one, that tells you what scores you must reach in order to earn coins. 3rd place usually isn’t terribly difficult to reach. For many games, a 1st place score will be reached around the time of the Conveyors board in Level 3.
This is the game selection mode. Coins you earn are rolled down the ramps from the top of the screen; you have to collect them in order for them to count!
Before starting each hack, you’re presented with a text description of the game and how it plays, and who made it.
Here’s Galakong, which has been linked from this site before. The game is slightly easier, objectively speaking, than standard Donkey Kong, but it’s easy to get your attention split between the ship and Mario and make mistakes because of it.
Pac-kong replaces the roaming fireballs with the ghosts from Pac-Man. They move mostly randomly, like the fireballs, did, but they’re much faster. You can become invincible by collecting an Energizer, which turns Mario into Pac-Man temporarily. Pac-kong’s one of the harder hacks present.
Donkey Kong Anniversary Edition changes the boards slightly, and replaces the bonus items with presents and balloons. In case you didn’t know: you can collect items off the edges of girders by jumping at them: if you hit the edge of the screen during your jump, Mario will be bounced back to around the place he leapt from, and will (usually) be unharmed!
Donkey Kong Wizardry changes the Girders level substantially. They add new pits to leap over, changes to the way the ramps tilt, and adds other surprises. You get an advantage though: if you press the Player 2 Start Button (the 2 key), it’ll freeze the fireballs for several seconds.
Donkey Kong Lava Panic adds a tide of deadly fluid constantly rising up from the bottom of the screen. It becomes important to get the lower rivets on the Rivets board before they become submerged!
The Halloween and Christmas-themed hacks change the Girder stage greatly. When barrels (or whatever analogue that hack uses for them) fall off of a gap in the middle of the screen, they may randomly decide to go either direction, adding even more uncertainty to Mario’s progress. Be careful!

zandravandra’s List Of Mega Man Romhacks

It’s too light to make it an official Romhack Thursday post, but it is Thursday, so…. or rather, it was, yesterday, when this was slated to go originally, except Fully Ramblomatic premiered and I figured I should strike while that iron was hot. This iron, after all, is more malleable at lower temperatures.

Alex Zandra on Mastodon, @zandra@mastodon.social, who is @zandravandra on Cohost, put together a list of her favorite Mega Man romhacks that looks pretty interesting.

The games are (in order through the series): Mega Man Speed Bomber, Rollchan No Constancy, Rollchan At The Tokyo Olympics, Mega Man 4 Voyage, Mega Man 5 Double Jumper, and Rockman 6 Spirit of Hackers. The closest I’ve come to playing any of them was Rockman No Constancy, before Roll was put into it. There are lots of hacks that are difficult even to play, so curated lists of them are very useful!

Alex Zandra’s list of Mega Man Romhacks (cohost.org)

Romhack Thursday: Ultima Underworld on Playstation, in English

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

The critical consensus on Ultima Underworld is that it was a high point of the Ultima franchise, a then-unique (and still fairly distinctive) kind of game, a 3D fantasy adventure released nine months before Doom, with a detailed dungeon and a high degree of player agency.

Ultima Underworld got a Playstation release, but only in Japan. It is not a straight upgrade from the DOS version, it’s got different cutscenes and anime character portraits, as well as interface differences. Still, it could well be worth playing for its own sake.

Often for these romhack posts I’ll try to apply the patch myself and take my own screenshots, but in this case the patch is over 120 megabytes, and itself to be applied to a CD game ISO, and a substantial game to learn and navigate in itself, so I’m going to pass this time and just use screenshots from the game’s romhacking.net entry.

Look at that anime-style character art. I guess this counts as the third JRPG post in a row.

English Fan Translation of Ultima Underworld for Playstation (romhacking.net)

Romhack Thursday: Snooplax Explains the History of Mario 64 Hacks

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

It’s another video! And it’s Nintendo related! I bet you’re just thrilled!

This is one, however, is far from something the Big N would approve of. Snooplax goes into great detail in explaining the history of hacking Super Mario 64, the first 3D game to really have a substantial hacking scene–I don’t count things like DOOM, since to a degree it was made to be extensible. Nintendo never dreamed that people would do the things to the Mario 64 engine that they have, which has included optimizing it to the extent that it can run at 60 fps on original hardware!

Seeing all these hacks together in one video is rather inspiring. There’s been not one, but at least three, major Super Mario 64 level editors, with different degrees of flexibility and detail. What enthusiasts have done with the engine over the years is surprising, and there’s no end in sight, so please enjoy this look back at this prolific scene.

History of SM64 Rom Hacks (Youtube, 37 minutes)

Romhack Thursday: Doom on a Commodore 64, kinda-sorta

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

Look at that title and marvel a bit. Doom on a C64! What an idea. How could it even be possible? What an age we live in. It is a time of wonders. Children are our future.

Of course there’s more to it than that. There is a whole class of “retro” game that amounts to implementing the actual game on separate hardware, and using the supposed host platform as a glorified display and input device. That’s what’s going on in this case. Doom is really being run on a Raspberry Pi in a plug-in cartridge on a processor that’s underpowered by modern standards but far outpaces that of even Doom’s base configuration, and is thousands of times more powerful than the Commodore 64 to which it pipes its output.

But there’s still some technical interest in the means. The device that runs it is a “RAD Expansion Unit,” a DIY device that emulates a C64 RAM expansion, and apparently can even take over from the 6510 CPU and drive the system’s hardware directly. It works by writing to the VIC-II video and SID sound chips itself.

There was still a lot of coding work required to make this possible. A C64 has somewhat decent sound hardware, but the VIC-II chip has severe limitations on what it can display. The Raspberry Pi has to take the game’s display and port it, in real-time, to a graphics chip that can only display up to four colors (out of only 16) in each character cell, and that’s by sacrificing half of its horizontal resolution. Doing that on the fly itself is a noteworthy hack.

Could it be possible to run DOOM on a C64 without such assistance? At native resolution, ha ha ha: no. The memory limitations are too grievous, so at the very least you’ll need a RAM expansion.

I’ve mused at times on whether it might be possible if one uses the character screen as a kind of super-low-resolution graphics mode, each 8×8 character block representing either a 2×2 pixel grid (so, a resolution of 80×50) or a single pixel (40×25). Even at such a resolution 60 fps is probably out of the question, for it takes a lot of cycles to change every tile every frame, but maybe at 30 or 20? 15, 12, 10? (60 is divisible by a lot of numbers.) I will leave that question to people who are more current with C64 assembly coding.

Here is a demonstration video:

Doom on C64 – A playable tech demo for the RAD Expansion Unit for Commodore 64/128 (Youtube, 19 minutes) – Github repository