That got it working due to Josh's suggestion, thanks!
Interesting idea for a game, it seems very like it's completely luck based as there's no clue to the answer to the puzzle. I did try a puzzle and when i hit the switch nothing happened? I assumed as I didn't get attacked that I did it right (since the instructions say that if you get it wrong enemies will come for you) but the door didn't open, so I'm stumped lol. Nice idea for a game though, graphics were nice, sound fx were on point and the shooting felt satisfying. Nice job.