I got a chance to play the rayman demo at best buy today and it sucked balls.
Firstly -- this game could 100% be ported to wii/ps3 (if move exclusive) in addition to 3DS or vita. maybe even kinect, not sure how good pointer control works there. the second screen was completly unneeded as the core gameplay mechanic of "murray" is implemented identically to LBP pre-historic moves expect rayman used touch instead of pointer controlls but the interactions were exactly the same.
Which brings me to the important part of why rayman sucks balls (as did LBP prehistoric moves). playing as murray sucked balls. rayman is suppose to be a platformer. when i started playing i was playing as rayman and the game was starting out pretty good. about 1 minute in they forced me to play as murray instead of rayman (rayman was operated by the game). if you want to know what playing as murray is like ... buy a terrible iphone game like bubble pop. all you do is touch the active part of the screen either poping bubles or cutting ropes or shifting platforms ....NOT what i want a rayman game for.
add to that the game keeps shifting from screen to gamepad and back. it didn't feel natural at all .. all i got was on screen cues of stop looking here, now stop looking here. it didn't add to the gameplay at all, it just frustrated me and slowed down the game. in a lot of ways the shift from screen to screen felt like a quick time event. by that i mean i felt like the game was playing me more than i was playing the game. it kept taking control away from me and forces me to play the game exactly how it wanted it to be played. all i had to to was tap, swipe right, swipe up, tap, look up, tilt, look down, rub, then swipe down. it was exactly like a quick time event actually.
...now maybe this game would be more fun multiplayer. i dunno, i can tell you i would never want to play as murray ever but if i could get someone else to so i could just play rayman i'd probably like it. rayman was the one game i was really interested in for wiiU as rayman orgins was fantastic. i'm soo disappointed in how legends played in single player. absolutly aweful.