Very fun gameplay! I think the theme could have played a stronger role, but I'm glad to see a mechanic around it. The art was really solid as well as the music. I got to wave 21 before deciding to change my strategy a bit and got suddenly overrun. Pressing space to convert the first couple of people was a little annoying, so I went for the auto-convert as quickly as I could, once I figured out I could buy upgrades. I should read game descriptions before playing.
Congrats to the team on your first submission to GWJ! This turned out great!