This was an awesome game and was really fun to play had to stop at round 12 because I had to get to the other games lol.
I found the mystery box not working after some point and wasn't sure why.
The zombies sometimes just cluster up on the first floor below you while you are on the second floor especially if you only buy the staircase in the second room and not the staircase in the first.
when I was in fullscreen mode for the WebGL I'd press esc to pause and it'd shoot me out of fullscreen mode it'd probably be better to have the pause button be another key on your keyboard.