Gameshark won't work with some self boot games? What?

[Excalibur007]

Originally Posted by Darkfalz

Codebreaker can crack games that Action Replay/Gameshark cannot, because it supports workaround codes for protections against these things.

But codebreaker only works with GD-ROMs.

Unless you get the codebreaker boot loader.
(note: it only works for codebreaker, not xploder)

I know this is an old topic, but in case anyone is still wondering about the question... Gameshark checks the version number in the IP.BIN, so if you have a rip from someone who uses a general IP.BIN for their games, (such as using a Crazy Taxi IP.BIN for all their rips), the version # may be 1.000 for example, but if the original GDROM is 1.001 or something different, it won't work. Sometimes there were even multiple version #'s released by the developer, such as Sonic Adventure.

Another reason could be that a lot of the pirated releases were of EU/PAL versions of the games, but you may not realize it. Red Dog (from echelon), for example, was an EU version release, but looks just like the US release.