New Gi Joe Game Multi player issues

we seem to crash when we try and play Multi player. The game is the patched version. Any suggestions, my kids want to beat me at another game.thanks in advance

Arm7 patching sometimes (most of the time?) ruins the wireless and wifi capabilities of the games, since that info is also stored in the Arm7.bin file.The only thing to do is to try and patch it again with a different games Arm7 file.

Apparently Bomberman 2's file is good? I don't know.