Xevious was modestly successful in the US, where it was produced by Atari, but it Japan it did amazing numbers. Jeremy Parish (in his NES Works and related series) has mentioned several times that it was a vastly influential game in Japan, inspiring a whole generation of designers, and a whole bunch of clones and similar games. Its US release was around the time of the arcade crash, which was mostly an American thing. If it hadn’t had happened, maybe now we’d think about Xevious the way we consider Pac-Man.
The team behind Xevious
Xevious basically invented the vertical scrolling shooter where your ship has free movement of the screen. It also included a Bomb button to attack objects on the ground, displayed on the game’s background layer. It was a concept that would later be iterated upon in Konami’s Twinbee games.
Revealed in the article is an interesting fact. The scrolling background is stored in ROM as a huge 1024×2048 bitmapped image. That’s much wider than the screen is though. What the game does is send the player into a vertical portion of it 224 pixels wide.
When the player reaches the top, they wrap around to the bottom of another vertical stripe of the game world. In a complete loop, the player will travel from the bottom to the top 16 times. You can tell when you’re about to start another loop because the background will reach a place with trees all the way across!
You always start off a life in a tree-filled area because it begins you at the bottom of a stripe; each vertical pass over the map functions as a checkpoint. The stripes overlap somewhat, so you sometimes pass over an area you’ve seen before but offset by a bit.
For more facts on Xevious and its development, be sure to click through to the article!
The podcast Arcade Attack interviews former Atari designer and programmer Ed Rotberg, creator of Battlezone! His introduction identifies him as the creator of the first FPS. Is he? I do not know for sure, but it seems awfully plausible. I think it’s a little distasteful identifying him by his connection to a genre that, when he created Battlezone in 1980, wouldn’t even exist for a decade yet. Rotberg’s accomplishment feels more profound than that, but Battlezone is definitely foundational!
Andred Braybrook is a legendary computer game dev from the Commodore 64 age, and before and after. In addition to the classic C64 games Uridium and Paradroid, which perform feats of scrolling that machine are really not designed for, he went on to many several other games, including the excellent computer ports of Taito’s sequel to Bubble Bobble, Rainbow Islands.
(Although Braybrook mentions that Taito hadn’t told him about the three secret islands that can appear at the end, so they got left out. They didn’t know about them either!)
Image from Braybrook’s blog
He has a blog post that details many aspects of he and his co-workers’ process back then that is fascinating to anyone with knowledge of these platforms, and even someone who doesn’t. Thanks to @acb@mastodon.social for the link!
Set Side B often verges into adjacent tech areas, especially for older software, especially when those areas happen to contain a lot of games. This is just a note that the always-great Jason Scott of the Internet Archive has a great post about Discmaster, which is hosted at the IA, and is a search engine into the contents of a bunch of old CD-ROM file compilations. Many of these were shareware collections put out by companies like Walnut Creek, intended in the age immediately before the internet to put out collections of shareware, but sometimes bundling freeware, or libre-free software.
The error, presented in class Web Gray and Times New-Roman.
Some of these files are very hard to find on the wider internet. When I visited Discmaster myself it was down for an upgrade (it’s a bad sign when your filesystem runs out of inodes) but I look forward to scouring its archives often in the future!
Pac-Man is rightly heralded as a classic, not just the best-selling arcade game of all time at over 100,000 units (even more when you consider every Ms. Pac-Man arcade machine has the elements of a Pac-Man machine inside it), but it’s solidly well-designed. All of its elements come together to produce a solid test of skill and strategy.
It’s not perfect though. The game possesses two major flaws that, in retrospect, made it a little less interesting to play now. The ghosts behave deterministically when they’re not vulnerable, meaning that patterns work against them and turning the game into a test of memorization and execution. And, every level’s maze is the same, which gets kind of monotonous. Tellingly, while Pac-Man was extremely popular for its time, its GCC-made follow-up Ms. Pac-Man had a much longer life in arcades, and it addressed both of these issues with the first game: ghost movement at the beginning of boards is randomized, and it had four mazes, instead of the original’s one.
Random Pac is a fan game, available on itch.io and made by Luca Carminati, that also solves the issues, and a bit more simply: it randomizes the maze for each level. This one change makes the game immune to memorization, and makes each level a kind of situational puzzle, as the player must use the maze layout as best they can to avoid being caught.
It’s not the only change made, but the others are, for the most part, in line with that one. Since the game is much less likely to extend endlessly, extra lives are awarded multiple times, first at 10K then every 50K points, instead of the once, by default, of the original. There are bonus levels in place of the intermissions that can be worth a considerable number of points.
The fruit bonus items that showed up twice during each level of the original game may now appear up to four times per level, which can be worth the majority of the player’s score if they can get up to the 5,000-point Key boards. Getting all four Keys is 20,000 points, which is two-fifths the way to an extra life by itself.
The game increases in difficulty a bit more slowly than classic Pac-Man. I’ve been to the 7th Key level; in the original, on the the 5th Key board, and from the 7th Key on, ghosts no longer become vulnerable when eating an Energizer (a.k.a., a power pill). Vulnerable times kept decreasing in my 7th Key game, but hadn’t cut out completely yet.
Another difference, and I’ll be going into some deep Pac-Man internals here. In classic Pac-Man, ghosts have three states, Scatter, Chase and Vulnerable. If Pac-Man doesn’t eat an Energizer, ghosts periodically enter Scatter state for a few seconds, then change back to Chase. You can tell when ghosts change between these states because they all reverse direction.
In most boards there are two Scatter periods, and the timers, both for entering Chase and Scatter, freeze while an Energizer is active on any ghost. In Random Pac, the timers don’t freeze; Chase and Scatter periods continue even when the ghosts are vulnerable. This makes Energizer timing very useful for decreasing the amount of danger you face: a short way into a Chase period, eat an Energizer and disrupt their pursuit! By the time they catch back up to you after it wears off they may be time for them to Scatter!
In place of intermissions there’s a bonus round that asks you to eat as many randomly moving targets as you can in 35 seconds
Ghost AI seems to be mostly the same, although unlike classic Pac-Man, each ghost doesn’t seem to have a set “home” location. They don’t intend to chase Pac-Man during Scatter, but instead fixate elsewhere on the board. The Orange Ghost’s Chase AI also makes use of its home location, making its behavior much less predictable, although it’s still easily the least threatening ghost.
Random Pac was Luca Carminati‘s first classic game remake. Since then, they’ve made many others, including Tutankham Returns, which we’ve linked to before. They’re terrific!
On Romhack Thursdays, we bring you interesting finds from the world of game modifications.
Last month we brought you Metroid + Saving, a passable attempt to make a classic game, that has a number of quirks related to it being a fairly early NES game, less frustrating to newer (younger) players. This week’s hack is another with that theme, snarfblam’s hack of NES The Legend of Zelda that adds a working automap to the game.
Like Metroid, finding your way around 128 screens of Hyrule is challenging, even if the game isn’t as large as, say, the Gameboy Link’s Awakening, which had 256 screens. But the limited number of tiles also decreases each screen’s visual distinctiveness, especially up in the mountainous regions.
The map appears in the upper-left corner of the overworld screens, which you can see in these screenshots. A special touch is that the map isn’t revealed all at the start but fills in as the player explores, and doesn’t consist of blank squares to show explored areas but even shows some detail. Places where screens are blocked internally are shown on the map, which is a great aid to both navigation and memory.
It immediately becomes evident that, like with Metroid + Saving’s mapping feature, it’s how the game should have been written originally, and probably would have been if design trends had evolved just a bit further at the time.
There are a couple of other graphical niceties in the hack, like health being shown in the life meter in 1/8th-heart increments. But overall the map is the main attraction here. It’s such a fundamental change to the game that the much more involved hack Zelda Redux uses it too. It is also worth trying out, if you still find the original Legend of Zelda to be a bit too hardcore for you.
The Complete Guide to Koholint was his first Zelda podcast, and it discusses each of the 256 overworld screens of Link’s Awakening. 256(!) episodes. They vary in length between one minute and 47, with most being just a few minutes long. RSS.
Back in the days of the Apple II, there was a thriving scene in trading copies of commercial software. Means to prevent this, through copy protection schemes, were just as rampant, as publishers sought to protect their work from those who would use it without paying. The process of figuring out a disk’s copy protection and making it so it could be copied and run by others was called cracking, or sometimes, kracking.
Cracking was, and still is, a black art. There are many ways to protect a disk from being copied, and just as many to deprotect that data. Some disks remain uncracked to this day. It is the work of Apple II cracker 4am (Mastodon) to try to unlock the data on these rapidly aging pieces of media so they can be preserved. (On 4am, jump to the bottom.)
The Apple II Kracker’s Guide seems to have been written by a anonymous user known as The Disk Jockey. It’s a good overview of basic forms of copy protection and ways to defeat them. A copy is at the Internet Archive, but I encountered it in the collection at bitsavers.org, here. It’s like candy to someone of the right frame of mind. Like me!
Aside: If the name 4am sounds familiar, and you find yourself thinking “Didn’t he used to be on Twitter?” He was. He’s not anymore. This happened several months before the Age of Musk. Twitter’s automated processes decided somehow that a video he tweeted of Apple II software Super Print booting was revenge porn and banned him, even rejecting an appeal. He moved to Mastodon. Now that Twitter is missing half of its employees, situations like this will probably become more common. 4am is not the subject of this post, but if you want to read more about Apple II protection and its breaking, you should follow him on Mastodon. He has about one tenth of the followers there that he had on Twitter, which is a shame.
This one’s crazy. The Gameboy does not have external video output. In order to get its display to appear on a screen other than its built in LCD dox matrix, you absolutely have to at least crack open the case. Don’t you?
Well, actually, yes, if you always want a perfect image. Sebastian Staacks (an awesome name) figured out a way to do it that mostly works. It’s a cartridge that goes into the Gameboy, that itself has a slot into which you plug the cartridge that you wish to play. Simple, right?
No, no, wait. There’s a problem. The Gameboy doesn’t expose its video through the cartridge port. There is no pin leading out providing a video signal that can be converted for display. There’s no way this could work!
Well, there is a way, kind of. The device contains a Raspberry Pi that runs its own Gameboy emulator, that it tries to keep synced with the version running on physical hardware. It does this by watching bus activity exposed to it through the cartridge port!
But while there’s a lot that it can do with this information, there’s also a lot it can’t see. It can’t, for example, see directly what buttons are being pressed. However, by watching how the cartridge reads the cart ROM, it can deduce what inputs were pressed.
The process is not perfect. While it can spy some memory accesses, a few things escape its inspection. While it can recreate the layout of the starting blocks in Tetris Game B, it can’t catch their randomized appearances. Also, while a Raspberry Pi is much faster than a Gameboy, it’s not fast enough to carry out its display in the same frame as the main unit, so it lags behind a couple of frames. Still though, it’s a very clever idea, and it’s amazing that it works as well as it does!
Sebastian made a Youtube video explaining and showing off his work, here. (It’s the same one embedded above.)
I worry that he’ll never finish his many Youtube game history projects, but Jeremy Parish has hit an important milestore as Segaiden, his Sega-specific series, reaches the beginning of the Master System era! In addition to the console itself three games are covered this time, including the pack-in that’s so packed-in that it’s included on the system’s circuit board itself.
There’s no shortage of game history videos out there, but Jeremy’s work is among the best, tieing the other collection of relentlessly-complete game cataloging projects, Dr. Sparkle’s Chrontendo, Chronsega and Chronturbo. I find that neither Jeremy nor Sparkle’s projects replace the other, but instead look at their subjects from different angles. Jeremy Parish has more of a view of context, both from other games and history, while the various Chrons look directly at each game’s play.
But importantly, neither of them succumb to the many excesses of Youtube gaming culture: they aren’t hyperedited, they aren’t overloaded with sound effects and swishy graphics, neither of them feel like they’re aimed at 14-year-olds, and no video in any of their series looks like it’s trying to complete with Tiktok. Whether you think that’s a good thing or a bad thing–well, let me clarify your thinking for you. It’s a good thing. It’s a very good thing.
Everyone’s favorite, or at least the most famous, charity speedrunning marathon is back! It’s January 8 through 14. This is the one with Awful Block, BTW! This year AGDQ is being run to support the Prevent Cancer Foundation.12
This year I have a schedule conflict and so I won’t be able to watch it as carefully to report on day to day here. But I can try to say something where I can when I happen to catch a stolen moment!
Of note, AGDQ 2023 this year is completely online again. SGDQ this year went back to being in person, but particular issues resulted in AGDQ going back to online-only. Specifically, back in 2020 before the pandemic happened, they had locked in a venue in Florida. Since then not only did the pandemic hit, but Florida went absolutely anti-vaccine crazy, not to mention anti-trans!
Both of these factors resulted in their decision to not hold the event in Florida, even though it requires paying substantial cancellation fees. That sucks, but I support them in this decision, and I say this as someone who lives in a state close to Florida.
Even though I won’t be able to follow it as closely as last time, they will still be posting archives of all their runs to Youtube so they can be watched after the fact! And I can still take a moment to have a look at their schedule right now and find some things that might be of interest out our audience of three, maybe even four people. All times here are US Eastern:
SUNDAY, January 8th
Noon: Splatoon 3, still a really new game so you’ll probably to be able to see a lot of new tech!
1:30 PM: The Legend of Zelda: Breath of the Wild. The past six years this game has been absolutely blown apart in strange and entertaining ways! This may be its last year in the spotlight though, since its sequel is coming out this year!
4:29 PM: Castlevania: Symphony of the Night. An old favorite!
11:19 PM: Pokemon Mystery Dungeon: Explorers of Sky. This is a randomizer run, so unusual events may be in the offing!
MONDAY, January 9th
4:30 AM: Ax Battler, A Legend of Golden Axe. A fairly obscure Game Gear game, focusing on the least charismatic character of the original Golden Axe trio.
7:35 AM: Bomberman 64: The Second Attack.
11:39 AM: Shovel Knight Dig. A race!
2:54 PM: Teenage Mutant Ninja Turtles: Shredder’s Revenge. This is that recent game made as an homage to the classic Konami arcade titles! This is described as a “chill race,” and is being played in co-op mode.
6:59 PM: Portal. A “bonus game,” which will be done if a donation incentive is met. Portal is another game that’s been annihilated by speedrunners.
10:59 PM: Fable Anniversary.
TUESDAY, January 10th
12:29 AM: Ape Escape 2.
3:39 AM: Goat Simulator. “Here comes that goat again….”
10:29 AM: Castlevania: Harmony of Despair.
11:39 AM: Castlevania: Aria of Sorrow.
2:30 PM: Super Mario Galaxy 2.
7:05 PM: Outer Wilds.
WEDNESDAY, January 11th
4:02 AM: FEZ.
6:28 AM: Final Fantasy VII. Over seven hours!
2:03 PM: Stardew Valley. A glitchless race.
2:53 PM: A Sonic the Hedgehog block, with Sonic Unleashed, Sonic Colors: Ultimate and Sonic Advance 2, which is the subject of a character bidwar. #teamamy
5:21 PM: Pokemon Red “or Yellow,” I don’t know what that means. Glitchless, but only two hours long. How?
7:36 PM: Ocarina of Time 3D.
8:21 PM: Last year’s hit Stray as a bonus game.
11:54 PM: Kirby Star Allies, with a “Guest Star?”
THURSDAY, January 12th
12:44 AM: Pac-Man: The New Adventures. This is that funky 16-bit game where you don’t directly control Pac-Man but instead try to influence an AI-controlled Pac to do what needs doing. This may be intended to kick off Awful Block, but I don’t think it’s really awful, just, not really much of a Pac-Man game.
1:23 AM: AWFUL BLOCK! Yo! Noid 2: Game of a Year Edition, Yolanda, Lizard Lady vs. The Cats, Office Race, Salamander County Public Television, Battle of the Eras, Morodashi Sumo, Dokkaebi-ga Ganda, I’m going to die if I don’t eat sushi!, Sonic Blast, Bad Guys At School, and Steven Seagal is the Final Option, at 7:05 AM.
8:59 AM: The World Ends With You: Final Remix.
12:54 PM: Metal Slug. Oh I’m sorry, that should be Metal Slug!, with an exclamation point.
2:00 PM: BS The Legend of Zelda. Not only is this a terrifically obscure game, only released on the Satellaview in Japan (and only coming down to us in any form due to the hard work of preservationists and hackers), but it’s a 100% race!
6:17 PM: Puyo Puyo Fever 2.
6:57 PM: Mario Kart 8 Deluxe DLC tracks as a bonus game.
8:27 PM: The Simpsons Hit & Run.
11:43 PM: Power Wash Simulator.
FRIDAY, January 13th
3:06 AM: Kirby Air Ride. A hugely underrated game! Although sadly this is normal racing and not its stand-out mode, City Trial.
3:39 AM: A short NES block, with Jackal, Mickey Mousecapade and Chip ‘n Dale Rescue Rangers.
5:33 AM: Beautiful Katamari.
7:03 AM: Gunstar Heroes.
8:28 AM: Kirby’s Adventure.
10:35 AM: Metroid Prime 1+2. Multiworld Randomizer Co-op. How will this even work?
1:45 PM: Cult of the Lamb.
6:00 PM: Elephants and Snakes and Crocodiles. On the SNES? I’ve never even heard of this one!
6:55 PM: Final Fantasy XIV. The description of this one is a jumbled alphabet of abbreviations and initialisms, I have no idea what any of that means.
8:05 PM: Arcade Stepmania, as a bonus game. This is a demonstration, not an actual speedrun, but these tend to be insane anyway!
9:35 PM: Super Mario All-Stars Shuffler.
SATURDAY, January 14th
2:38 AM: Blinx the Time Sweeper.
5:29 AM: Mega Man 64 and Mega Man Rock N Roll. The first of these two is the N64 version of Mega Man Legends, the second is a fan game.
9:08 AM: Donald (Duck) in Maui Mallard.
11:27 AM: Metroid Dread. All boss glitchless. To think we went from this game being a vaguely rumored cancelled title to an official release being speedrun at AGDQ in a little over a year.
1:17 PM: Terraria.
6:02 PM: The Legend of Zelda: A Link to the Past as a bonus game.
10:53: Super Mario 3. Warpless, but any%.
That should be it, although of course they like to put in unannounced bonus games toward the end, so keep your eyes open!
On Romhack Thursdays, we bring you interesting finds from the world of game modifications.
The 2D Super Mario Bros. games illustrate pretty well how game design tastes were changing through the NES era. Super Mario Bros. and Japanese Super Mario Bros. 2 still follow an arcade-like paradigm, where players are expected to lose many games before they finally rescue the princess. (Obviously, Vs. Super Mario Bros, being a coin-op game and which was released between those two, adheres to an arcade play ethic out of necessity.)
But Super Mario Bros. 2 is more of an adventure, where a skilled player might finish it on their first try, and an experienced Mario master can amass so many extra lives in Super Mario Bros. 3, as soon as World 1-2, as to make finishing it on the first attempt quite possible. Then when we move into Super Mario World we have outright game saving, and the fear of the Game Over screen recedes almost completely. That is the structure that all the later Mario games have followed, where losing progress is fairly unlikely.
I am not here to claim that this is a bad thing, and of course, even Super Mario Bros. offers to let the player continue on the world they lost on with the use of a code. But the code is still a secret, and while it isn’t a bad thing, it is a different thing. Super Mario Bros. with the copious extra lives and rule changes of later games, would be much a different experience to play through, even if all the levels are unchanged.
The romhack Super Mario Bros. Tweaked, created by Ribiveer, makes those changes. The worlds are exactly the same, but many subtle aspects of SMB have been brought into line with its sequels. Here is a list:
• Starmen count the number of enemies you defeat while invincible, increasing scoring, and if you get enough you start earning extra lives. This change alone will earn you tons of extra lives.
• Extra lives over 10 are displayed correctly on the level start screen, and are limited to 99. Mario’s state on the start screen is properly updated based on his powerup state.
• If you hold the jump button down while stomping on an enemy, you get extra height. This happens in Japanese Super Mario Bros. 2 as well, of course.
• Consecutive stomps and enemies defeated by shells and Starmen increase the pitch of the enemy defeat noise as points increase, as they do in Super Mario World and later 2D Mario games.
• Taking a hit while Fiery Mario reduces you to Super status. Also, if you make a Fire Flower appear, then take a hit before collecting it and get reduced to Small Mario, collecting the Flower still advances you to Fiery state.
• Reaching the top of a flagpole awards you not points but an extra life.
• Invisible extra life blocks aren’t disabled if you failed to collect enough coins in the previous world’s third level, as explained in our previous post.
• Collecting a powerup in midair no longer ends your jump.
• The conditional scroll stop at the end of 1-2 and 4-2, which is broken in the unmodified game, work now, making it much harder to reach the famous Minus World. It’s still possible to reach it; the patch author promises a surprise if you do.
Some of these changes mean that players get a lot more extra lives, greatly decreasing the game’s difficulty. Consider that now, 38 years after the game’s release, far fewer play Super Mario Bros. than they used to. Someone might dust off their old NES some time, or play it on Virtual Console or through Nintendo Online on Switch, or emulate it by some other means.
But most people now who play SMB are probably people who are at least very good at it: streamers and speedrunners. People who don’t need the game to be made any easier. A patch like this might open Super Mario Bros. up to people who always thought it was too difficult, though.
It does feel a touch fairer, without that expectation that players will lose over and over. If you always found the first Super Mario game too challenging, give this hack a try. The challenges are pretty much the same, but you’ll have quite a few more chances to learn to overcome them.
You can now binge on extra lives as easily as you can in later games
You don’t have to trigger the game’s secret condition to make extra life blocks appear
Oh almost forgot, some of the Cheep Cheeps are green now
