So it's a cool platformer, I like the art and the custom death illustrations per level.
The controls actually feel pretty good, but the platforming is tough! It feels very precise, which the fast-paced movement makes way harder. I also think the screen shake when you're about to run out of time is a little too much! It's very distracting. I think having a platformer with a timer like such and fast-paced should have less precision-based platforming.
Also I wish there was audio
Overall, as a one-person job, this is well done.
Congrats on a successful jam!