I think the biggest piece of feedback I would give is to consider speeding up the gameplay a bit; the player ship and the ships of the enemies feel a bit like they're moving through molasses right now.

I love the sprite for the ship and all the backgrounds, they're very cute! (and nice music too!)

The music is my favorite part of this game,  love it, the background graphics and the dithering effect that shows when moving from a level to another are amazing, the gameplay could benefit from more varied attack/movement patterns for the enemies, liked the boss fight but after defeating it the game just continues, is this normal? fun game tho!

Congratulations on finishing your game for the game jam! Unfortunately, it shows more than four colours on the screen at once (which is one of the criteria for the jam) and thus it won't be eligible for a prize. However, I won't remove it from the submissions to allow other people to enjoy the effort you've put in.