Mega Man Battle Chip Challenge
Let's go... Accept the challenge! Compete against your opponents. Earn new battle chips and upgrade them! Test your skills in cool new battle scenes and prepare for the ultimate battle for "network domination" in the Battle Chip Grand Prix. Choose familiar characters from the Battle Network universe - including Mega Man and Guts Man - meet an all-new Net Navi character and use your Battle Chips for punches, sword maneuvers and special moves. Mega Man Battle Chip Challenge, released in Japan as Rockman EXE Battle Chip GP, supports two-player battle via link-up.
Story
From wikia: "A new net fighting tournament has been opened to the world, the Battle Chip GP. Yai Ayanokoji is the sponsor of the event while the others are participating. Even Eugene Chaud is participating in the tournament, but only for official business. It turns out that there is a new organization behind the scenes of the tournament that wants to erase the winning NetNavi and claim its data for themselves. Will Lan Hikari and her friends be able to stop whoever is behind these threats?"