Run across the blocks floating in a black void. The faster you run, the faster your score goes up. Boosting lets you run over gaps.
Made with The Games Factory 2: Newgrounds Edition
This is probably as far as this game is going to get developed, unfortunately. TGF2 just doesn't seem to be able to handle generating blocks consistently at these movement speeds. Also, High Scores are local only because the free NG version of TGF2 doesn't support online highscore tables.