Gruntilda's detached head returns to her home of Spiral Mountain for revenge, but the three are interrupted by the sudden appearance of the Lord of Games (L.O.G.), the creator of all video games. He decides to settle the conflict between the two by devising a series of worlds and challenges. He uses his powers to give Gruntilda an artificial body and to restore the duo's physical fitness, but not their moves from previous games, claiming that they will not need them.