This was pretty cool! The mechanics were simple, but the rewind was well done and, more than some of the games I've tried, I actually found myself using it quite a lot and wishing I had more energy at times. The floaty physics of the jump felt lighthearted and good, too. Got lots of airtime to shoot with. The graphics were simple, but clean, and the audio fit (except the main menu music, which came on at pretty high volume right away). It was clear some effort went into enemy variety, but I think a bit more could have helped there -- most enemies seemed to have the same shot behavior with slightly different speed/timing.