I really love the way this game looks and sounds! I especially love your missiles--the explosions they make are super satisfying.
If I were to be a bit nitpicky, I'd say that turning either left or right feels a little slow. I struggled a bit during my playthrough because the yellow target kept going offscreen (to the right) and it took a while for me to turn to face them. So being able to turn a bit quicker might make the game feel a bit nicer!
(I guess you could also make it so that the targets don't travel left and right as much, but I personally feel increasing turn speed is just easier.)
Otherwise, it's a great clone! It felt very polished.