Arcanon is the antagonist of Altered Beast: Guardian of the Realms, a dark reaper that rebelled against the Olympus and stole the realm keys and took control over the hall of realms. Zeus revived a Guardian to stop him. Arcanon is the final boss, appearing in the Palace of the Gods. He attacks by making bone hands appear from the floor to catch the player, hitting him with a lightning while stuck, and by summoning skeletions. He is also able to teleport.