It's pretty looking, but that's about it.

There are plenty of stuff that needs to be addressed, in no particular order:

1. Performance

For some reason this game requires a quite powerful PC to get decent performance out of it.  The steep requirements will exclude lots of people running even relatively modern computers.

2. Difficulty

Unless this game is supposed to cater exclusively to a hardcore audience the overall difficulty of the game needs to be reduced. Most of the difficulty stems from the extremely tight time limits imposed from short acting mandatory powerups so increasing their duration might be prudent. Another observation is that the "air powerup" seems to be exceptionally difficult to use correctly, as such this ability should be reworked to be easier to use.

3. Game is too large

For a game this early in development to already be a 1 GB download should be a wake up call that unless measures are implemented right now to limit game size, the game is going to go over the default size limitations on the platform. Find out what your space budget is and make sure to stick to it.