Gex is a video game character and the protagonist of a series of platform games developed by Crystal Dynamics. First introduced in 1995, Gex is a witty, anthropomorphic gecko known for his catchphrases and pop culture references. The games typically involve Gex navigating various themed worlds, collecting items, and defeating enemies. The original game, titled "Gex," was released for the 3DO Interactive Multiplayer and later for other platforms like PlayStation and Sega Saturn. The series continued with sequels such as "Gex: Enter the Gecko" and "Gex 3: Deep Cover Gecko," which expanded on the gameplay and introduced new abilities for the character.