It is best to keep Bon-Bon in the edge of the light beam as he rises up, then quickly move and click his button. Taking too long will result in his jumpscare. After doing this, there is no more danger, and you may complete the night.
Click and hold to wind springlocks, and shake left and right to get the Minireenas off the suit. Letting a springlock unwind fully or letting a Minireena climb too far will result in a Minireena’s jumpscare and a game over.
If Ennard isn’t there, close the monitor and open the door. If it is there, but not right up close, open the door and close it when you next hear movement, then double check to see that he’s there. If Ennard is right up close, or right at the door, keep it closed until you hear movement, therefore it has moved away.