PTODO: 3-Stage History
The 3-Stage had a variety of show effects that would be added and removed over the years, with most stopping by the late 2000's.
Curtains would continue to be used until September of 2005, where stores would disable their curtains, leaving all three open at all times. The last showtape to program new segments with curtain signals was the September 2005 Show, though reused segments and live shows with curtain signals would continue to appear up until the January 2014 Show.
Munch Jr. Spotlight / Gobo Light
During the 3-Stage's first few years, the original Antioch spotlight used for the Rock-afire would instead be pointed at Munch Jr. This changed with the September '94 show, where stores added a gobo to the spotlight reading "The Chuck E. Cheese Show", and pointed it at the center stage. This gobo light would then be used going forward for the introduction of showtape segments, no longer being used for Munch Jr. The last showtape to program new segments with gobo signals was the September 2005 Show, though reused segments and live shows with gobo signals would continue to appear up until the January 2014 Show.
The house lights were a programmable signal for controlling the showroom lights, allowing the entire room to dim. Despite this being a newly installed effect for the 3-Stage, it wouldn't go used until some time between the Environment '92 show and the July 1993 Show. During its usage, the lights would only dim once a programmed segment would start, and were never programmed in any special way outside of this function. The lights would stop being programmed for new segments after the September 2006 Show.
The CU Flower (Animatronic) was a special effect only tested in a few Texas stores after the debut of the 3-Stage. Its only movement is its mouth, which used up the original bit number for Dook's left ear movement, going unused when Concept Unification converted him to Pasqually. Its earliest known appearance being programmed in a showtape is the CEC Rock It In Space show, and its last known is the Awesome Adventure Machine (Show). though reused segments and live shows with flower signals would continue to appear up until the January 2006 Show.