The "E" in Chuck E. Cheese, also referred to as CEC, stands for "entertainment." Chuck E. Cheese is the logo mouse for the popular restaurant chain.
Chuck E. Cheese was founded by Nolan Bushnell, who is also the co-founder of the video game company Atari.
The mouse mascot for Chuck E. Cheese started out as a cigar-smoking New Jersey rat. The New York Daily News reports that CEC executives once considered naming the rodent "Rick the Rat" but refrained from so at the suggestion of a PR agency. Chuck E. Cheese, the mouse, was officially recognized in 2012, according to Marketplace.