I value honest feedback, so I won't lie, I had a hard time with this game, not because of the gameplay, but because of the controls; they just seemed very unintuitive to me. This is not to say the game is bad, I quite like the idea, I think it fits the theme perfectly, but I'd have to lie to tell you I enjoyed it. One thing that I think would help would be a "crosshair," which could show players where their missile would land if they fired now. Also, the playing area being larger than the viewing area really hurt the gameplay. The art and audio aren't the finest, but that's ok. That being said, I can enjoy a fairly original concept as I haven't played a game like that yet, it gives me an old arcade game vibe, and I think with proper polish, art, and audio, it could be turned into a very fun game.
I am very curious about what software you used to make this game? I can't recognize the engine. This clearly isn't your first game jam. Keep going and keep making awesome games!
6/10 <3