That could be easily tested with PS2 emulation. I haven't tried it, but I'm curious enough to do it now.
I did some unscientific tests on PCSX2, with both the US and EU versions of the game, with Colossus #3 on hard mode, torso weakpoint. Wander seemed to flail more than normal in both. So maybe there's something to it. I don't have an actual PS2 to test the game with anymore though.