Great game! The gameplay is fluid like water. You can clearly see where the enemies and bullets are moving thanks to the simple colors. I like the music.
I think it's pretty clear from the title which game you were inspider by. The original is a relatively short game, but it has a lot of enemy variety and patterns that are very tightly designed. That is almost impossible to do in a jam, but that is what you should aspire towards, IMO. Your game is still very fun to play, but it's more like a prototype (which is OK for a game jam).
Highscore: 35700