Cool stuff! This is probably one of the more original games in the jam. A ship with a doot-doot and little blue gremlins. Peak material! The audio was incredibly mixed as well (that music soothed me and blended well with my occasional doots).
I guess as for critique, I found the art to clash a little bit with each other. I'd probably look into a consistent pixel brush size and keep that across all environmental and character assets. As of right now, the octopus feels a bit out of place when compared to your high-rez-looking ship.
Another thing I noticed was that I didn't feel the need to use A or D since I was able to do what I needed to do to win the game. I didn't feel like I had an incentive to use it--keeping all my little gremlins alive--since their loss didn't impact my gameplay that much (if at all)
Regardless, super unique stuff, and if you continue to work on it, keep it up!