That is partially intentional, it's a wave-based survival game similar to COD zombies. Instead of the mystery box you modify your weapon to change what you're using throughout the run. Sadly we were only really able to get one rough level block-out done since we started the jam half way through. Hopefully the waves/spawning continued though, I know our play tester(s) mentioned once or twice a bug that we couldn't pinpoint that prevented the next wave from starting. Thanks for playing!