Excerpt: Spill coffee in real life, and you've got a mess. Upend a cup in Puddle , and a simple adventure in fluid dynamics begins. As your trigger fingers tilt the world left and right, gravity and momentum coax liquids through perilous obstacle courses. Cross each finish line quickly and with enough fluid left, and you’ll earn a medal and unlock the next two-dimensional track.
Pros: + Simple controls; interesting range of fluids; themed environments with varied obstacles.
Cons: ? Did we really need to see a dude pee on a rat?
Conclusion: Few modern games eschew the established convention of the "tutorial level" but Puddle is one of those exceptions. Having a control scheme consisting of only two buttons (triggers, in this case) the developers, Neko Entertainment, must have decided that the best way to get the player into the game was to launch them into the action and let them figure it out.