Volcano (ボルカノ,Borukano?) is a virus from Mega Man Battle Network 3. It shoots out fireballs at an arc (similar to Bomb-type attacks) towards the target. When the fireball lands, it releases a ring of fire that remains on the panel, damaging anyone who lands on the panel. If they step on Lava Panels, they will recover HP.
Volcano viruses drop the Battle Chips Lava Cannon (マグマキャノン,Lava Cannon?Magma Cannon in Japan) and Volcano (ボルカノキャノン,Volcano?Volcano Cannon in Japan), a fire element cannon that also hits nearby targets. Volcano's range is greater than the Lava Cannons.