yeah the blue bg is something that used to happen consistently
From the other comments it looks like we did manage to fix some of the cases with out last minute fix(like 5h before the jam ended, but it was 1am for us)
A shame it didn't work for you but thanks for playing!
We originally planned on multiple types of enemies but given the fact that we didn't even have the time to make the monkeys look where they move(just a rotation). It was obvious to us that we didn't have the time for more enemies.