The first thing that'll strike you about this game is the artwork - a great hand-drawn-and-animated style that really adds to the experience. The second thing that'll strike you about this game is just how damn good it is. The simplicity of jump-splat-bounce-explore is seldom explored these days as developers look for ever more intricate designs.
Enjoy the simplicity of this superbly fluent and uniquely rendered game (or else!!!).