It looks like the Prize corner in Five Nights at Freddy's 2. The poster with the Toy Animatronics, however, has been modified to show the animatronics from this game.
It is where the Music Box appears, and it doesn't appear to have a Rewind button anywhere, meaning The Puppet can simple move around on it's own. However, it can move slow on the first few nights when it begins its attack one at the beginning of one night.
On the early version of the game (when it was called Five Nights at Freddy's 3), Sugar starts here.