So I see some of you have made patches, for Jack Bros and Space Squash for instance. My wish now is for a patch for Insmouse no Yakata. The time limit destroys the game for me, and couldn’t there exist a way to increase the time limit through ROM hacking? Myself I’m an idiot and haven’t got a clue as to how to do it or if it’s even possible. But if anyone knows, it’s you guys. So, any ideas?

Yeah, you can adjust the time limit through a ROM hack… but why? I haven’t played it in a while, but I don’t really remember time being a problem with the game. Have you played it enough to get familiar with the maps, or are you just wanting to be able to run through it first time?

DogP

DogP wrote:
Yeah, you can adjust the time limit through a ROM hack… but why? I haven’t played it in a while, but I don’t really remember time being a problem with the game. Have you played it enough to get familiar with the maps, or are you just wanting to be able to run through it first time?

DogP

Actually.. I’ve played some more now, passworded to the last levels and got Endings B, C and D. Then I played from the beginning and got to Ending C, with continuing. Ending A is too hard to get. But I guess having more time wouldn’t really help with that. Invincibility would still be nice to fool around with, but… yeah.

I’d still want to know how ips patches are made…

IPS patches themselves are just the differences between the original ROM and the hacked ROM (keeps patches legal, since there’s none of the original copyrighted ROM). I assume what you’re really asking is how to hack ROMs.

There’s lots of ways to do it… but typically you open the ROM in a hex editor, find what you want to change, change it, then try it in an emulator and make sure it does what you want. Of course the hardest part is finding what you want… which can be found by searching the ROM for certain numbers (like if you know you get 55 seconds, search for 55), or if you’re trying to change text, search for words… and so on.

DogP

Yeah but if you have some compression there for example for the Text, then you have to find the decompression routine. most of the time it is some LZ Format.