Bakugan BRAWLER GAME PACK GP-004 12 Orders's React by Sega Elementary set consisting Battle Gear, you can easily understand rule of Battle. (1) Shoot Bakugan to a Gate Card. (2) If Bakugan rides on Gate Card successfully, Bakugan changes its shape suddenly. (3) You can set up Battle Gear to Bakugan with Ability Card specifically for Battle Gear. (4) When your Bakugan changes its shape on a card where your rival's Bakugan exists, start battle.