The Fairly Oddparents - Shadow Showdown (Sir VG) ROM Download for Gameboy Advance (GBA). The Fairly Oddparents - Shadow Showdown (Sir VG) game is available to play online and download only on Roms Games. The Fairly Oddparents - Shadow Showdown (Sir VG) ROM for Gameboy Advance download requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.