Dolphin dominated GameCube emulation for years until a new contender emerged. Gecko, developed by GitHub user Layle, is gaining traction as an alternative. While Dolphin boasts superior compatibility—listing zero percent of GameCube titles as completely broken—the newer Gecko emulator faces challenges with visual glitches and broken games.

Both emulators require legitimate ROMs obtained through lawful means like purchasing games and dumping them from consoles. Nintendo has historically pursued legal action against emulators, exemplified by its $2.4 million lawsuit against Yuzu and previous DMCA notices against Dolphin releases. Despite legal hurdles, Gecko represents a promising open-source project aiming to serve both developers and gamers.

The community-driven approach and transparent compatibility tracking position Gecko as a potential future leader in the emulation space.