Boulder Toy Bonnie is a version of Toy Bonnie, and the second forest animatronic skin released on November 19, 2020. He is Toy Bonnie's second skin, after System Error Toy Bonnie in the Arcade Mayhem Event. Boulder Toy Bonnie, being a Toy Bonnie skin, is similar to him. He is made entirely out of rocks and is covered in moss. Boulder Toy Bonnie has no eyesockets, with only hollow holes in their place. He has numerous cracks all over his body and his limbs are covered in branches. His left ear appears to have a chunk taken out of it.