It's the year 200X and everyone in Den Tech City is plugged into the Net. But living in cyberspace isn't always fun and games. High-tech crimes and pesky viruses are always a big problem for the authorities. Thank gookness for MegaMan and his NetOperator, Lan Hikari. Together, they do their best to keep their hometown safe from being permanently deleted.
When MegaMan unlocked the ancient "Beast" program, he gained the dangerous ability to "Beast Out"...and unleashed a monster as old as the Net itself! Now, to win the power to stop CyberBeast Gregar, MegaMan has to prove his worth as the world's top NetNavi. Worse, his arch-rival Bass has gained the power to Beast Out, too! When Gregar breaks out of the Net and into the real world, can MegaMan and Lan stop the rampage?