Sonic Battle, a 2003 GBA fighting game by Sonic Team and Sega, pits Sonic and friends in fast-paced arena battles with customizable moves. Selling ~1 million copies, it’s a 2025 X retro favorite (,).

The .gba ROM (~8 MB) features vibrant 16-bit visuals and energetic music, running smoothly on emulators like VisualBoyAdvance, mGBA, or RetroArch on PC, Mac, or Android. Legally download Sonic Battle GBA ROM by dumping your cartridge with GBxCart RW (~$50,). Avoid illegal ROM sites like EmulatorGames.net due to malware and Sega’s copyright rules (). Buy Sonic Battle cartridges (~$15–$50 in 2025 on eBay