Doors and the Door Lights are a mechanic in The Return to Freddy's Classic.

Unlike FNaF 1, the Doors are actually almost completely useless to the game now. This is due to the fact that the doors are automatically closed at all times (due to them being severely damaged by Foxy according to the Phone Guy) and the player now defends themself with the Freddy Mask instead. So it’s pretty much only here for aesthetic purposes now. The Door Lights however can still be used, however there isn’t really much to much of a purpose checking them anymore due to the fact they appear in the middle of your office afterwards. In the original version of The Return to Freddy's, the texture of the doors is the same as in the first Five Nights at Freddy's, and they can be opened and closed, but they are still useless and still started off closed. Closing or opening a door will drain 1% of the power.

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The Door Locks are an important game mechanic in The Return to Freddy's 3 and return for the 1st time since TRTF 1.

Unlike the 1st game, the doors are now A LOT more important than they were before and it is one of the two main mechanics of the game used to defend off the animatronics (the other being the Corrupt Signal). They can be closed through the monitor in some of the cameras (similiar to the vents in FNaF 3) to prevent Lockjaw, Freddy Fazbear, Bonnie and Kitty FazCat from entering the player’s office.

The Return to Freddy's

The Return to Freddy's 3

Images will be added soon.