He appears to an 8 year old boy. He appears to be zombie like as he appears to be green and rotting. His jaw is dislocated similar to The Face. He also appears to be green as his body rots. His clothes also rot but his shorts appear to be less rotted. He has hollow eyes and teeth. He has a little bit of blond hair.
He starts at Night 3 behind the boxes in the storage room. When in the office, the player must hide or he will kill you. During his jumpscare, he appears to cannibalize the player as he lunge to them and bites their face off.
Arnold starts at Storage room then goes to Staff area, meet freezer, Lounge, then the office.
- He is another kid who gone missing during hide and seek and was later found out murdered by Ivan Huggins along with Jack and Zack.
- He is also from the joke fan game " Five nights at Treasure island: Hide or Die"
- He appears to be the only kid so far to cannibalize the player.