Groove Coaster is a new rhythm game from the creator of the popular iOS title Space Invaders Infinity Gene, and it too is earning lots of accolades as a beautiful and addictive title. It starts out simply enough: just tap on the screen in time with the music as your little character follows a line through 3D space. But while early levels are slow and relatively easy, later levels get more jagged, with quick turns and quicker hits required.
Near the end of the game, there are other gestures to play with, and all of the levels have you ranked with various grades. Game Center and Facebook integration lets you compete and share scores with friends, so that will lend a nice chunk of replay value as well.
Groove Coaster is a great title, available for $2.99 on the App Store right now.