The trouble that Yasu describes (or at least to a degree) is present also to the Win7/PC combo, under a Greek locale system. Many times, dialogs' sentences appear to have incomprehensible characters nextn to English letters/words, making it impossible to understand what's your next task sometimes. Thankfully, the game worked fine under MorphOS with fluent English dialogs.

@koszer

Indeed on the castle there is a noticeable framerate drop, especially when you face big enemies or they are plenty of them on the screen. The game remains in playable levels but it is still noticeable even under a 1,6GHz G4.