Monday

This is the first night for newer players. Animatronics here doesn't really moves so frequently. Introducing SpongeBob, Patrick, Piglet, Rigby and Mordecai, they all seems to be limited inactive, while Piglet is inactive for the longest time.

The first animatronics to move in this night, is SpongeBob, Patrick and Mordecai. Piglet is inactive, and Rigby has an extremely rare chance to appear in this night(if the player is completely inactive, he can kill the player immediately).

Just Close The Left Door
Whenever the player is inactive, before they do they must close the left door, as Rigby will be triggered to attack when the player is inactive. In the same time, it also works for Mordecai and SpongeBob if they're waiting to attack.

But still, don't close the door for the entire night without opening it, except the others, Piglet will be introduced to end the night when the power ran out. As well, closing the doors, checking animatronics with lights and the monitor will drain the power much quickly.

Spot-lighter
Another way to win this night is to check the Kitchen, Bathroom and Mascot Only Room for SpongeBob, Patrick and Mordecai. This will make them slower to attack and will maintain them in their original places.

If one of the trio(or two or even all of them) moves from where they belong, check the lights, especially for Mordecai. If their reflection or shadow is shown in the doors, close it.

Between the three, the least active was Patrick. Before him, SpongeBob or Mordecai will be by the doors first.

If Mordecai is inside The Office, don't use the Flashlight too often on him, as this will make him attack even quicker. To make him get away, close both doors, and he will faded away.

Stone Place
If Rigby is moving, no sound will come out. Check the Monitor if Rigby is moving. Close the left door before he attacks when he is in phrase 3.

Don't Stay Inactive
This is the most common idea to win, is to not be inactive for the entire night. Also, the idea Just Close The Left Door will not work if the player is inactive(as power will drain quicker).

If the player is completely inactive, the animatronics will "revenge" them by attacking them. Just like when one of the trio is in the doorway and the player doesn't notice, it will attack the player.

Tips

 * As this is the first night, power is not so easy to drain quickly.
 * Don't use the things that drains the power that much.
 * Check the lights every 8-9 seconds.
 * Check the monitor every 10 seconds.
 * If one of the animatronics was spotted, none of them will move unless the monitor is off.
 * There was an extremely rare chance that Rigby will not move at all even the player is inactive.