In the Candy's Adventure mini-game, the longest of all the mini games, Old Candy is trying to make his way to the Dog Boss at the end of the game. You start with five hearts and can replenish them throughout the map by breaking obvious or secret blocks in the walls.
Vinnie is never a threat, as he never appears in any of the in-game nights; he only appears in cutscenes, in which he will do seemingly-random things before appearing in front of the camera, with eyes open wide and glowing white. His presence here seems to signify some link between Candy's and Freddy's.
He is unique in that he only activates on the last few nights. Not much is known about him as he only appears in Night 5. He appears to get up and do something in the cutscene after completing Night 6. He is possessed by an actor from Rat and Cat Theater.
In FNaC 3 on Night 5's Cutscene, Mary, after telling The Rat she will play hide n' go seek with him and the other children, tries to find a place to hide, but all of the places, including the closet used by the player other previous nights, are all taken by the other children. As the Cat, who also is being played by an actor in the costume, runs out of the "Staff Only" room, leaving the door open and unlocked, Mary decides to hide in the Closet within that room. Soon after, The Rat says he saw her run in, and The Puppeteer appears, then starts chewing the actor in The Rat's costume/suit out for being drunk during work hours.
RAT reactivates in 2007, after young Marylin Schmidt breaks into the factory and stays there for six nights. RAT is only active on Night 6 along with the CAT, they are the only animatronics active for the whole night. After Night 6, the factory burns to the ground leaving nothing but rubble, it can be assumed that RAT and all the other animatronics were destroyed in this event.
"You will spend up to six nights, custom night might be added in a future update, in said room. You will look at cameras, turn on flashlights and close doors and all that just for a lousy boss that probably doesen't even appreciate your work!"
William's Dinofunpark is coming to an end, the possessed costumes are turning into more of a monster than they once were, your job is to keep them inside the building you work in. If they escape they could end the world, survive for 5 nights to hold them back, but beware, they are after you... 781b155fdc