This is fantastic. Starts out slow but the cash mechanic is a great way to reward the player for progressing. I also really appreciate that you saved the cash I earned to my Hyplay login, that makes it really fun to come back and continue score-chasing. Nice music, and great flash game vibes. My only criticisms are: I think the rocket icons should be sideways to indicate that they boost you in that direction, and I think that items should not be consumed if you use them when another item is already in use.
Excellent work!