I had trouble getting into the game because looking up and down was inverted from what I would have expected (using mouse / keyboard), and I didn't realize there was a projectile when shooting for a while, because it's almost always moving directly away from the camera behind the player model! There's also something causing the high scores to take over the title screen periodically.
That said, I love the energy of the music and the great variety of sound effects! I cleared the first stage and want to see if anything happens when collecting all of the fruit/gems! The overworld design is also cool. Makes me want to explore!
Good work :)