Awesome multiplayer, unique and innovative gameplay, and wacky visuals all mixed together with an enticing price tag
Challenge mode teaches you a bunch of really cool moves that you can perform by using Wik's tongue to swing around the levels. Playing through this really demonstrates how unique and responsive the controls are.
Loopnastics is an addictive mode where you try to do as many loops as you can on a time limit. I've spent a bunch of time trying for high scores on the leader boards.
But by far the best feature is the multiplayer games. Tag and Fire Pit are two really great game modes that are well worth the $10 price tag. If you can get a group of 3 or 4 people together to play tag you'll see how much this game really shines.