(100% Achieved on the main game, DLC stages still not completed)

A fantastic game and one of the best 3D platformers I've ever played. Level design is fantastic, your movement options amazing and the physics extremely exploitable.
I love this game, but it REALLY seems to lose its edge towards the end with the last few stages being somewhat awkwardly designed and/or conceptualized.

The storytelling is still fanfic level of badness, so I suggest skipping it all.