Between 1990 and 1992, The Rock-afire Explosion was being phased out of ShowBiz Pizza Place after Concept Unification. Creative Engineering was attempting to reinvent the Rock-afire Explosion. Around 1991 the first new style of animatronic was created by one of CEI's employees, Chris Lanusse who had previously worked with miniature animation. He helped to bring the Rock-afire Explosion down in size. These smaller animatronic characters were nicknamed "Mijjins" by Aaron Fechter. Their first usage was with the show created in 1992 called, The Mijjins which contained Billy Bob, Fatz Geronimo, six human characters, and a bare animatronic known as the Mijjinator.