Eren said:
and for some reasons in the map I found an invisible wall where Rayman hits his head, odd...
I was playing around and noticed there's a secret passage next to the chute which leads to an invisible path, if I'm not mistaken this is probably what you hit your head on:
snip1.PNGsnip2.PNG
Also I was playing around with the ram in a hex editor and managed to find an alternate sprite of Rayman, seemingly half naked:
snip5.PNG
And a slightly glitchier view with a larger portion of the sprite sheet visible:
snip3.PNG