Found something while experimenting. When you disconnect your Wi-Fi (or enable airplane mode) touch the 2 closets and then reconnect your Wi-Fi (or disable airplane mode), the game thinks you already opened both closets and skips the opening animation for one of them. Here is a video of the glitch being used.

I don't have any Wi-Fi hotkey, so I have to tab out the game with ESC. also, the reason why I disconnected at the end is because having your Wi-Fi disconnected for too long will kick you out the game so that might be a run killer.

Looks very interesting