This was cute and fun! Really good use of lineless pixel art for the gameplay; the people—er, space grunts, are very cute. The shmup gameplay was competent, although the hitbox seemed a tiny bit large.
This was fairly difficult for a jam game. Weirdly enough, the beginning seemed harder than anything else.
I noticed that bullets don't despawn on death; I'd often respawn right into a bullet and start an attempt at 2 life.
All-in-all, great work!