The aesthetics (both visuals and music) were so nostalgic to me; kudos for nailing that vibe! In particular, the artifacts on the music were just perfectly done. I would have liked some sound effects for movement and jumping, and the lack of anti-aliasing, while period-accurate, did give me a little bit of motion sickness, which may actually be a point in your favor in terms of authenticity since 3-d games of that era used to do that to me, too.
The gameplay was also fun; I liked that you could use the time manipulation not only to avoid waiting for platforms to come back around, but also as movement tech. Really neat entry. Great work!