Cool game and very fun idea you came up with! I could totally see this being a nice experience if polished and made longer! Also I'm glad you included a reset button.
Some small suggestions:
- Maybe having a button to instakill you could be a good idea, especially useful in the first 2 levels
- Maaaybe the 3rd level could use a slightly longer timer
- Would be neat if I could resize the window or set it to fullscreen
- The collision checks for jumping can be a LITTLE wonky at times. I had situations where I should've been able to jump from a body to another but wasn't able to (but it's not a super big issue either)