Gameplay remains similar to Gex: Enter the Gecko, with the addition of certain vehicles, such as a tank, a camel, and a snowboard, as well as swimming and gliding abilities available in certain levels. Like Enter the Gecko, new stages are unlocked by collecting TV remotes. Unlike Enter the Gecko, in which Gex can obtain a variety of themed collectibles throughout a level (e.g. skulls, TNT plungers, carrots, TVs, and police plates), Gex can only collect bugs, the same collectible from the original Gex. Upon receiving certain power-ups, Gex gains the ability to spit fire and ice. When losing a life, Gex retains only the amount of bugs collected up to the latest checkpoint; if the level has no checkpoint, Gex starts at zero. Due to Gex 3's limitation of 100 bugs per level, collecting the required bugs is more difficult than in Enter the Gecko. Similar to the first Gex game, collecting footprint icons will increase Gex's energy. Unlike the first game, Gex retains the energy (eight hits total) after collecting 100 footprints. Levels are accessed via a more expansive hub, with more areas unlocked as the player collects remotes from each of the levels. During bonus stages, players can unlock and control three alternate characters, Rex, Cuz, and Alfred. Collecting all 50 remotes (including by defeating Rez) unlocks a special ending showcasing the development team, though this was absent in the UK release due to that version having a language selection screen.