good job for a first game, just some feedback
1. i think the controls are a bit clunky at times, the jumps feel unresponsive a lot so id recommend adding coyote time if you can
2. the clocks i think should go back a little more, maybe 5 or 6 seconds instead of 3.
3. you have time! try adding some animations or an intro cutscene even
very good game 8.7/10