A rare, first-party WiiWare treat to whet your appetite...

Just premiered at this year's Penny Arcade Expo was Fluidity a very intriguing WiiWare puzzler made even more special by the fact it's coming from Nintendo themselves.

Seeming to be a tilt-based puzzler not dissimilar to something like Loco Roco, the game promises an "amazing physics engine" to help players solve a variety of innovative puzzles, with later levels introducing power-ups and enemies. Get a load of the debut trailer below.

Moistened by Fluidity? Let us know what you think below...