This concept is ripped from a science fiction short story. I'd have to dig through some of my anthologies to find out the name. But it was definitely ripped off from that story.
In that story someone bounces forward and backward in time building up temporal energy from temporal friction. At the end he finds himself at the beginning of everything and realizes that the ridiculous amounts of energy he'd built up would cause him to explode and actually "be" the origin of the universe.
I enjoyed this game, though it was very short. I won't count off stars for blatantly ripping the idea from a story and not giving credit because the game itself was still solid.