An extremely original, if not at times a little convoluted, story about the time we have left and what we do when it runs out, all told while playing through the myriad of sometimes entertaining puzzles the game has to offer. The gameplay loop leaves some to be desired, as once you get the hang of things in about Chapter 5 or 6, it'll be pretty much the same thing all the way through. Figure out what has to happen in the puzzle (some combination of pressing buttons, jumping from cliff faces, walking across bridges), do the puzzle backwards, and then reverse time on all of the test elements. Rinse and repeat. Not the worst way to spend a Saturday though.