A really nice game jam entry!
I think you scoped perfectly on this. Not too long that people won't play it all and not too short as to seem, well, too short.
The FTL-style boss battling felt really nice. Though I did prefer playing as the starship (that may be my low attention span talking though). The movement felt pretty fluid. I did use all my missiles at first thinking they were my main attack - before realizing if I pressed up I would shoot out my much weaker actual main attack.
The only glitch I noticed was one that was mentioned on your (AMAZING PLEASE JOIN US) Discord, which is playing one right after the other makes the game really slow for some reason.
Nice job Xander!