Overall I like the visuals of the games and the simplicity. However, the game was too easy because of the rate of fire. The only reason why I would lose hitpoints was because the enemies would spawn on top of me and I really did not like this because I had no control of it making it unfair. I am not the type of person who tries to get the highest score so this game has no replay value and the "paint collecting" is merely for visual appeal. I also did not understand what the yellow bar on the bottom was and why the tri-shot would disappear and how to get it back.
A few suggestions:
Lower the rate of fire.
Add some sort of upgrades or different ways to kill the enemy.
Make the "paint collecting" more worthwhile, add some gameplay elements to it.
Explain how the tri-shot thing works.
Other than that I think this game has good potential and would be better if it had more depth to it.
Sometimes the power bar glitched and it wouldn't let me fire the rocket at more than 0 power. The end was terrible: I land on mars and am instantly teleported back to my upgrades where I find I didn't gain any money or anything else. The game needs fine tuning: there was too many rocket fuels to collect. You could get to mars without getting half the upgrades.