Lan and MegaMan must defend DenTech City against Bass, a juvenile delinquent who can mimic any foe's power and who is responsible for putting Lan and MegaMan on the top of the most wanted list in DenTech City.
Lan and MegaMan are on the run. Even with the help of BubbleMan, they can't escape the long arm of the law now that they've become DenTech City's public enemy number #1.