Stuck in a Loop (Nic)

This is a escape puzzle game where you have to find passcodes to unlock five doors. Controls: Movement - Arrow keys Interact - x Cancel - z Use mouse or arrow keys on keypad. Made by me and @caomujiarong with Unity, for Ludum Dare 47. The theme was "Stuck in a loop". Walkthrough is posted in the comment. The WebGL build does not work properly unless I use development build, hence the message on the bottom right, and it needs WebGL 2.0 support on browser. If it does not work well on the web, plea...