His name is Saibōgu which is japanese for Cyborg. (Yep, I used google translate) Lore: Saibōgu was a security robot to keep the playhouse safe from intruders, his visor were originally red, unfortunately a big accident happened where he suddenly left the playhouse, the security cameras saw him having a blue visor instead of a red one. To this day his wherabouts are unkown to this day.