Play Beyblade Metal Masters: Nightmare Rex emulator game online in the highest quality available. Beyblade Metal Masters: Nightmare Rex is a Nintendo DS game that you can enjoy on Play Emulator. This NDS game is the US English version that works in all modern web browsers without downloading. Beyblade Metal Masters: Nightmare Rex is part of the RPG Games, Adventure Games, and Action Games you can play here. PlayEmulator has many online retro games available including related games like Beyblade G-Revolution, Beyblade, and Beyblade: Metal Fusion.