This is an interesting thing, the main differences are the loading screens, the character designs and the fact that this is translated to Japanese, and also the fact that some of the voice clips have been mixed up. This and the Dreamcast version are the only versions of Rayman 2 that have been released in Japan. (Thanks to OldClassicGamer for the ISO https://paste.sh/NnZ-Yijp#zV3t27xpVgbskO4I9UPR3idZ NOT MY LINK) BTW very sorry for the slowdown
seeGAMEPLAY