I love the pixel explosions! They're so my aesthetic. Shoot to move is kind of a meme so i wasn't really surprised by the mechanic. Definitely wish there was more to it than that but you implemented it really well.
Your game is very cohesive.
Add some twin-stick shooter controls (i think the mouse aim is unnecessarily frustrating) and you've got a game i could spend a good long afternoon on.
Congratz on making a game for the jam!