Five Nights at Freddy ... all wearing masks of certain animatronics. The only one of the bullies in the game to be seen without a mask at some point is the Freddy Mask bully.

Anyone who has played Five Nights at Freddy's 4 and managed to beat the game found ... respective of the masks they wore (the bullies wore Freddy, Foxy, Chica and Bonnie masks).

As far as spin-offs and more challenge-based games go, though, there are 4 additional FNAF games that fall in this category. These are Five Nights at Freddy ... the V.A.N.N.I mask to Cassie ...