I really enjoyed!! I think you nailed on the difficult ballancing for a jam.

Cool game!

But i really do not understand how this fits into theme.

Cool game ! 
nice music and sound effects
I liked the concept of missions to gather resources!
Like others have said,  I wish the movement were a bit faster
Awesome stuff

Audio is good, visuals are fine, game feel is getting there. I see you made the player sprite stretch when it shoots, a nice detail. However, if you had added something like that in the movement it could have felt more responsive. Because right now it shoots autofire (which I think is not bad decision) so having a visual effect on the shooting action, (or non-action) doesn't contribute to a sense of control as much as feedback on movement actions would. Congratulations on getting the game done on time.

It's moves really slow, I think you should need to hold to shoot (Im probably the only one, but I like holding buttons) and it needs camerashake more particles and stuff.

Only problem was the insertion of the theme as a RNG-based teammates and that's it. Still, a really simple solid gameplay and graphics & sounds are great!