First things first, let me explain what each custom night exclusive characters does:

Balloons: They will be flying around your office, they will only make more your visibility harder, as the night goes on more of them will appear.

Mask: It will drop randomly at your face, making your vision harder, to take it off your face just place your mouse at the top of the screen (Note: It don't block the buttons)

Skinner's Ad: His ad will appear on your cameras from time to time, just activate the cameras and press the Skip button to send him away.

Pie: it will appear in this position randomly

Hover your mouse over it to make it go away, if you turn on the cameras while it's there it will block your vision for a few seconds (note: it will not block the buttons)

Fan: From time to time it will start to have a seizure, which will start wasting a lot of battery, click it to stop.

Golden Homer: Every time you turn off the cameras his poster may appear in your office, when that happens it will appear in the office, to make it go away just activate the cameras again (note: after his poster appears, he will only appear in the office after turning off the cameras again).

Strategy

On my run I used all upgrade at max level, I suggest you to do the same.

At the start of the night, put the left tv on the left door camera, the right tv on the right door camera, and put the main monitor on yuppo camera and then close the cams.

During the night, keep checking yuppo's cam and the tvs; close the doors if bart or lisa are there. (Ps: If a lot of ballons are blocking the tvs and you can't see if there's someone in there, check the door lights to know if someone is there)

TIPS AND TRICKS

If marge and homer attack at the same time, don't worry, homer will wait for marge to go away and then he will do his "Homer smash".

Use the green battery or the jumpscare shiled power up (PS: the jumpscare shield makes your vision a little more dificult after being jumpscared)

If ghost abe appear while golden homer is at the office, turn on the cameras and then take care of Abe.

Warning: Ghost Abe can appear three times in a row during the night

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I can't say that you will beat this mode at your first try after reading this but soon you'll beat it! I hope this guide helps you good luck!