From the makers of Guitar Hero comes Phase, a simpler version of the peripheral-based game for the iPod, minus the tricked out guitars of course. What it lacks in originality, the game makes back in spades thanks to its ability to use your own songs. Simply create a playlist in iTunes, and it will automatically create note charts for the game. The gameplay is as tight as can be on the iPod, with clean, smooth graphics and a great difficulty curve. This is not one to miss for music game fans on the go.