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List of Co-op / Multiplayer hacks

Started by NesDraug, December 16, 2018, 07:01:41 AM

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NesDraug

Quote from: DoomJedi on May 23, 2022, 07:38:55 AM
Thank you for the answer, seem to be quite a challenging hobby that fits experienced hackers only.
I wish someone would make tools to make particular hacks easier.

I would also like to add co op to more games. Super Mario Bros. 2 (USA) and The Legend of Zelda comes to mind.

But I have only begun to understand assembly and although I've made some hacks I'm still very much dependent on more experienced hackers for help.


The NES used a modified 6502 processor and most games were written in Assembly.
If the source code is available and you understand the programming language you will be able to work miracles.

A lot of the NES games have been disassembled by the likes of Cyneprepou4uk and are available on github.
✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
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DoomJedi

QuoteSuper Mario Bros. 2 (USA) and The Legend of Zelda comes to mind.
Well, obviously many games could use such hack, can make a wishlist of my own (from platformers megaman, kickmaster, ninja gaiden, castlevania, whatever, and to even simpler games like pacman or defender II or road fighter or...or...)
We have no lack of wishlists, we do need more such hacks :)

QuoteBut I have only begun to understand assembly
You'll get there eventually, keep it up, wish you all the best (and if there is anything I can help...)

QuoteA lot of the NES games have been disassembled by the likes of Cyneprepou4uk and are available on github.
Russians especially seem to be good at this, one is famous here for his coop hacks, now this one for dissassembly - and he seems to have good youtube channel with all the tips and tricks, it's good I'm native russian speaker, heh :)
Will look into this and who knows...

DoomJedi

#102
Well, I always thought Ice Climber Mario (2P and 4P) where not done...carefully enough so decided to do my thing at romfixing :)

1. Made elevators to look like actual Super Mario elevators - only in snowy version.
2. Made slippery platofroms to look like actual frozen platforms from Mario Bros.
3. Made much better crab-hit animation.

Don't know how to do those things in "patch" versions, so just roms for now for my own fun, my big pixel art experience comes in handy :)
Might do more improvements, who knows, but it's already much more fun to play.

Have to say editing roms is much fun. Before only made my version of western-pieces russian Xiangqi (chinese chess) though never published.





Added paratrooper (looks good in real game, hard to make a photo properly)




Doomkid

Quote from: DoomJedi on June 26, 2022, 11:47:38 AMDon't know how to do those things in "patch" versions, so just roms for now for my own fun, my big pixel art experience comes in handy :)
Might do more improvements, who knows, but it's already much more fun to play.

Have to say editing roms is much fun. Before only made my version of western-pieces russian Xiangqi (chinese chess) though never published.
Hey DoomJedi! Just to let you know man, you can easily generate a .ips (common hack format) using "Lunar IPS" from the same fella who made Lunar Magic. All you do is compare a "clean" unedited rom to your hacked rom, and Lunar IPS automatically generates the file. It can then be used to apply that same patch to any clean rom of the same game, so long as things like CRC32 hash match up of course.

NesDraug

✍️ Blog: https://www.tumblr.com/blog/nesdraug

💀 Join my crypt on discord:
https://discord.gg/Eb4HTSNzeg

kuja killer

casualtom played the "coins hurt mario but luigi" hack of yours yesterday. It was was pretty cool. i think he beat it, but i dont remember already. It'll be on youtube soon im sure. :)

DoomJedi

Quote from: Doomkid on June 30, 2022, 09:55:53 AMHey DoomJedi! Just to let you know man, you can easily generate a .ips (common hack format) using "Lunar IPS" from the same fella who made Lunar Magic. All you do is compare a "clean" unedited rom to your hacked rom, and Lunar IPS automatically generates the file. It can then be used to apply that same patch to any clean rom of the same game, so long as things like CRC32 hash match up of course.
Thanks, just tried it, you can try it to (this is to patch the coop 2P and 4P ice climber mario versions, not the original ice climber rom).
Gimme some feedback (and backup first) :) Who knows, might motivate me with more edits now that I know how to make ips patches.

https://www.dropbox.com/s/6v0evd0s2cgdkt8/Ice%20Climber%20Mario%202P%20DJ.ips?dl=0

https://www.dropbox.com/s/vowoa8wrh2plnni/Ice%20Climber%20Mario%204P%20DJ.ips?dl=0

1. Made elevators to look like actual Super Mario elevators - only in snowy version.
2. Made slippery platforms to look like actual frozen platforms from Mario Bros.
3. Made much better crab-hit animation.
4. Replaced the fly with Paratroopa.

MethidMan

I sure wish someone could make a 2-player hack of Predator 2 on the Genesis.

proevofanatik

I would love to see someone hack Super Tennis and unlock 4 player doubles. You can only get 2 vs computer. Or 1 and computer vs 2 and computer. Why that was never done in the first place  I'll never know.