Some adventurous person leaked the first trailer for Rayman Legends on YouTube earlier today which not only revealed the game's very existence, but also some rather neat Wii U features. The first half of the trailer demonstrates a new engine running the game, which looks downright amazing. The same wacky fun from Origins appears to make a triumphant return, but looks better than ever. The trailer also confirms social media mini-games, online co-op and much more.