This is a really fun take on tower defense! I think it needs a bit more instructions on how to play. Also I wasn't able to check out more than one customer. I'm not sure if I was doing it wrong or if it wasn't working.
Viewing post in Haunted Mini Mart jam comments
This seems to be a bug with the version I submitted. Only seems to happen on the first wave sometimes, but still a huge bummer since I never saw this bug before submitting. RIP
For anyone else running into this bug, try checking out the first person in line before the second person arrives. This seems to fix it up for me.