13 waves! This game needs online leaderboard!
Other than that- the gameplay is intense. The "jumping" seems a bit off. I'm almost certain, that sometimes I landed in a bit different place than I intended- no matter!
The shooting and destroying enemies is properly juicy. The tiny pause after you defeat the enemy makes each win feel really impactful! Good job on enemy variety and different powerups!
The graphics are simple- maybe they cold bit more detailed, but you balance it out nicely with effects (animated text, the small pause, I written about). The sound was fittingly oldschool, and the music fit the action.
Over all- I enjoyed playing your game- keep up the good work!