It's a 3D platformer/puzzler about a donkey that likes to eat tacos and break things. If that wasn't cool enough, perhaps you missed the fact that it's called Time Donkey.
There's a trailer after the break that will illustrate how Time Donkey works, but here's the gist in a few sentences: Time Donkey is your basic 3D platformer at first glance -- you control a donkey, you break things, you snack on tacos. The only problem is that the eponymous donk' is "trapped in the very fabric of time itself, doomed to relive the same 30 seconds again and again."
In a move reminiscent of Majora's Mask and Braid, Donkey can rewind time at the touch of the button while "ghosts" of previous playthroughs go about their business. The trick, however, is that present-Donkey can interact with past-Donkey in order to snack on more tacos and, presumably, figure out how to get back to his normal life, in which he works in a fast-food restaurant.
I haven't played Time Donkey yet, but even if it sucks, I don't care. Jesus Christ, it's called Time Donkey.