Really nice art and music, feels a vey solid game!
Could do with a little bit of rebalancing, it started to tilt quickly and at that point I just couldn't reach the enemies fast enough to right the ship... so to say, I really do not know what I should do differently. Either shrinking the level to a single screen or adding a mini map for where all those heavy enemies are?
I feel there's a really fun game here with just a bit of balancing, please keep at it!