Gex: Enter the Gecko is a 1998 platform game developed by Crystal Dynamics for the PlayStation, Nintendo 64, Microsoft Windows, and Game Boy Color. It was released in 1998 and 1999 in North America, Europe, and Japan. The game is the second installment of the Gex video game series and the first with 3D graphics. Its protagonist, Gex, a TV-binging, wisecracking gecko, seeks to collect three types of remotes to unlock different TVs in the overworld that aid in the fight against his arch-nemesis, Rez. After creating the original Gex, which released for the 3DO Interactive Multiplayer, PC, Sega Saturn, and PlayStation in 1995, developer Crystal Dynamics sought a sequel in the form of a 3D platform video game in the style of Super Mario 64. The Gex model was rebuilt with this perspective in mind, and much of the game's humor was inspired by Fox's animated television series The Simpsons, on which scriptwriter Rob Cohen had previously worked as a writer. Critical reception of Gex: Enter the Gecko was mostly positive. Critics' main concerns centered on the game's camera, graphics, low-polygon enemies, and simplicity. The game was followed by 1999's Gex 3: Deep Cover Gecko, which was released on the PlayStation, Nintendo 64, and Game Boy Color.