I like the retro style of the game, it looks almost like a game of the old NES, I also like the detail that each level has something that makes it different from the rest, the music accompanies great and the effects have not noticed them strident at all.
Some things I've seen (totally normal in a jam), is that sometimes the abducted fish didn't collided with the UFO and continued ascending, and that in the last level the missiles are very difficult to avoid, Loved that ending!