Watchout, guys. You pasted the edit URL.
Cheers for such an awesome game!
I think it would be beneficial double-checking the instructions and fool-proofing them. In the Skulls Puzzle, what I tried to do was changing the skulls' names and not the ID number, and with the Elevator Puzzle was kinda confused if I should delete the button or not (I think it was my bad since the "remove" instruction was for the red wire, so bummer) and didn't understand what you meant by serial number, the whole two digits, the first one...? So, either allow more options to solve the same puzzle through different ways or fool-proof the instructions.
Anyways, congratulations, it's such an awesome short game and I hope it serves as a proof of concept for something longer. <3
Gonna recommend to my friends!