Rainey FX.

Creature Suits 

A performer in a suit can bring a character to life. Unlike puppets that have rods and cables coming from them, suits typically have no such things limiting their movements. Add animatronic mask and a character can truly come to life, interacting with your human actors. No tennis balls on sticks, no "the monster is here" with a taped X on the floor, with a suit the monster is there.