They aint got much im interested in. The TIM extractor is kewl, but I am looking for moding the game play, maybe add new things. For Psone, mostly want for ps2.
no way you can do that,
but it's probably impossible, the battard keys from psxeven proves that it's possible, (blowing up the head of a character, making it squishy etc) but it's really random. effects cant be assumed and expected.
however, for n64 this is pretty much doable, toadstool64 and goldeneye setup editor,
you can move the items etc or something like that, cant add yet, maybe on their future versions, I forgot who was that guy who recored a lvl of smb1 on mario64)
anyway, for psx, it's farfetched, of course, most likely to the ps2, if not impossible at this point in time, but maybe in the future (n64 has been around for almost a decade and a half and tools for it or modding it are just being perfected/still not perfect)
and replacing simply the files, no, once you open the disc, you can just put it back, modify etc, needless to say, it follows a certain toc and the game checks for the files, it wont run if your IMAGE is not licensed (there are tools for that [psx as I can recall]) but doesn't work all the time
if you wanna make games for ps2, programming from scratch is the way to go, it's not gonna be an easy task, but also not impossible, rip the gfx or sound if you wish, but you're going to write everything by hand.
>>
http://ps2dev.org/
but to take a game's engine and edit lvls and storly lines, I dunno.
if the game have some sort of scenarios, or lvl editors built in, then it's possible that editors native to the PC(win32) or other os to be doable, but you cant expect things to be available.
say, the lvl editors for THPS, save files for lvls are saved onto the MMC, export it to PC, and extract just the save file for your track, someone smart enough could write a totally new lvl editor for it. and then export it back on the mmcard and back to the console.
\\imagine warcraft or starcraft scenario editors (worldedit)
yea, that's about it.
-Leerz