Purple guy animatronic (or just Funtime Dave) originates from my old cancelled fan-game "Dayshift at Freddy's 4: Doggo location". In Re-drawn he is the face of the custom night.

Game mechanic:

Funtime Dave likes to travel through the vents. Use the vent door to stop him from entering your office. However, if you fail to do so, you still have a chance to survive. If he enters your office, you have 5 seconds to use the audio system and lure him away.

Here's some old sprites of Funtime Dave from DSAF 4: DL: