My Little Pony: Crystal Princess - The Runaway Rainbow ROM Download for Gameboy Advance (GBA). My Little Pony: Crystal Princess - The Runaway Rainbow game is available to play online and download only on Roms Games. My Little Pony: Crystal Princess - The Runaway Rainbow 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.