Gex - Enter The Gecko ROM Download can be obtained free for Gameboy Color on EmuGames.net only. Play emulator game in English for the USA region. Gex Enter The Gecko is a GBC ROM that you can download to your computer or play online within your browser. You can also download roms such as Gex 3D Enter The Gecko and Gex that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.