As one player controls Rayman (and up to three friends), the GamePad player gets to control chunks of level furniture, turn yellow lums into high-scoring pink ones and hold enemies down as the limbless freak pummels them.
Yes, Rayman Legends on Wii U is all your wildest bullying dreams come true. It's best when it asks for proper cooperation - at several moments, the GamePad simulates rotating platforms, forcing you to spin the entire tablet in your hands in order to realign the level as a chum holds on for dear life.
Then there's the excellent music level. By tapping giant blinking eyes in time with the music, the GamePad player unleashes pockets of lums and destroys obstacles that are in Rayman's way. Running a finger along lines of lums as guitar riffs screech out reminded me of Maestro: Jump in Music on the DS - no bad thing.
If you're playing this on your own, the Lums do this automatically - it's clear to see that this is best played with a friend.