@H801. Do you remember first cage you could break? In PS1 version (well, one I have seen), it was in 3rd area (excluding Betilla's one) without any gendoors. In both DOS and GBA version, you need to collect fist or something to create it.
Are you interested in those differences? I know a few of Jaguar version:
*) If you stand on an end of a platform backwards to it. In Jaguar version, you will turn back and Rayman will use same animation as if you go onto an end noraml way.
*) Rayman can't, errr, slide. In another words, you walk on silver bells same way you walk on drums.
*) There are probably cages in Candy Chateau. At least, in manual scan on Atari fanpage.
*) You fly on Angus funnier way - instead of punching enemies, you use his poison as weapon.
*) There are some textes, like in Sonic games, however they aren't names of levels, but things like "ACTION!" and "GAME OVER".
*) In bonus level, ting counter starts at x and goes to 0, instead of going from 0 to x.
*) Timer in bonus level is text like two *) above.
*) Also, "COLLECT X TINGS" is like this.
*) "PERFECT!" too.
*) Ah, and "GAME SAVED".
*) Game crashes if you press two opposite buttons at one time, however this can be emulation problem.