On his own, this little cuddly rabbit thing isn't all that scary, even in his infrequent jump scare segments. Where Plushtrap really gets to shine is in the Dark Rooms level of FNAF VR: Help Wanted.
Seeing any of the Five Nights at Freddy characters all up close and personal in VR adds another layer of fear to the game no matter where they are seen. While the stationary maintenance sections are nerve wracking exercises, its the Dark Room level that pushes your paranoia to the max.
Not knowing where Plushtrap is coming from and having to rely on sound to stay alive before he jumps out of the darkness makes this one of the most frightening animatronic sequences in FNAF history.