Just finished in 0:28:464 (far from the other scores :p)
The character movement has a lot of inertia in it which makes it hard to control. Next time it would be nice if you experimented other methods of character movement (maybe take inspiration in your favorite platform games, . It is actually fun to implement different stuff and see how it responds! :D
A good inspiration can be this video:
(the stuff about sub-pixels is mostly irrelevant for you because your already kinda work with subpixels in unity).
Good luck in your game making adventures!