Start slow, build up. Broadly, games follow this idea, beginning with tutorials, then growing over time. Puddle is no exception, but takes the "start slow" bit a little too literally.
There's much to dislike about Puddle's first hour. Being presented with a linear physics platformer that makes little of the physics is a problem. And relying on water that reacts like human effluvia, to tilt controls that feel like you're steering a 16th century galleon is no way to introduce yourself. Nor is the sheer length of time you have to do this, or the camera that can't decide where to point during moments of excitement.
If you stomach the initial slog and, crucially, turn off tilt control, Puddle unexpectedly turns into a very interesting - and beautiful - game. Different liquids, each with their own properties, change how you play, and new settings change how you have to play. Being chased by blood cells through a human capillary system, before being, erm, expelled into a sewer and accidentally killing a rat, was fun.
This Wii U eShop game is perhaps not quite worth the £7 price tag, and it will certainly tax your patience for a time, but there's a very compelling game in Puddle. You just have to get to it first.