The thing I love about this game is how little filler this game has. Unlike other 3D platformers the collecting and exploration elements are kept pretty low key, supporting the simple joys of running, jumping, and climbing. It takes advantage of feeling like a full 3D world but keeps level design fairly straightforward, sticking close to the genre's 2D roots, which is what I adore this game for. Add a very attractive world, very well done humor (which isn't afraid to be low key in the delivery of some of its jokes) and some surprisingly well done voice work (boss characters being the best) and you have a classic platformer. It is true that the game is a tad easy and on the short side, but every moment is so good you won't mind one bit.
Score: 10.0 (Classic!)