Smartly written and endlessly charming, Psychonauts is an ambitious action-platformer that never plays the same for more than a minute. Such strikingly diverse level design and gameplay would be an immediate criticism of any game other than this joyous excursion into psychological chaos. The madness works on the basis of its premise of the hero jumping into people's troubled minds to help them overcome traumas (Inception, anyone?). Silly as that may sound, the abundance of quirky characters brim with personality and really bring the experience to life. There are no doubt high and less-high points in a game as freewheeling as this, the peak being the surreal, funny and rather Lynchian level known as the Milkman Conspiracy. You'll just have to play it.