I am a bigger fan of Rayman, than I am of Oddworld. I have practically every main Rayman game, like Rayman 2 and 3. Though that Rayman 2 was really what I liked. It was challenging to me at the time and quite difficult for me, since I was only around 7-8 when I got it. It also got me closer to my dad, for I always called for help in the most difficult situtions.
However, Rayman 3 was sort of an, eh. It wasn't that challenging. It was disappointing that after you had completed all the levels, it was all about the points. Drated score system! That was the most frustrating part of that game. Plus, you would have start all over, just because you knew that your combo was done wrong. And, there wasn't a single QuikSave.
Rayman Arena wasn't that hard to complete either. It was another game that I did with my dad. He taught me how to use the battle modes, since I stuck at those. But now, I need replay Rayman Arena, install this new thing, so I could play others to express my difficultness! But yet, the computer is down, and all my information on games has been lost if I can't get it back up.
But yeah, I'm looking forward to Rayman 4. It's one of the few games that are playble on the PC.