Thought I would start a thread for version differences considering I went down the rabbit hole tonight comparing the Gamecube versions. As far as I can tell, the USA and JAP versions (Spirits & Spells and Mahou No Pumpkin) are indistinguishable except for the language, but they're both different from the EUR release (Castleween).

• Starting character: USA & JAP show Alicia/Ann walking in front of Greg in the opening in-engine cutscene, Greg disappears, and then you start the first level as Alicia/Ann. In EUR, Alicia and Greg are switched, and you start as Greg.

• Falling rocks: the boulders that fall in level 1 have a different pattern in EUR. (Slightly trickier, I think.)

• Cutscene swap glitch: I found a glitch in USA where if you enter a cutscene trigger while swapping, the cutscene won't play until you stop moving, and you don't trip cutscene triggers while you're in this state. JAP also has this glitch. EUR does not, but you can still achieve permanent cutscene glitch (don't know why you'd want to, it softlocks you to that level because you can't load the end level cutscene) by dying while going through a cutscene trigger.

Based on those, I assume that there are plenty of other differences throughout the game between USA/JAP and EUR on the Gamecube, and that it's definitely not just an emulator quirk. I haven't had a chance to look at PS2 versions but I imagine that's also a can of worms.

If anybody has any more version differences, post em here. I'll update this post with a list or something if my desire to do it exceeds the absurdity of the enterprise.