Oh gosh, pretty smooth game!
Ride the time line and catch the elusive Ecnirp, and make sure that he doesn't escape his fate! (Also, the text is backwards on purpose)
W - Jump
Hold S - Become ball to avoid walls (but also everything)
S while jumping - Butt Slam
A (with boost guage) - Slow Motion
D (with boost guage) - Speed Up (and break through walls)
Some updates have been made:
New animations between levels & also like, reasonable required scores, and progression, or something.