MegaMan NT Warrior - Season 1 Episode 50 Bass!
Overview: The Grave VirusBeast continues absorbing the internet. Lan and his friends team up with former WWW members to try and stop Grave. However, Mr. Gauss and MagnetMan intervene, and a strange bug left behind by Bass in MegaMan's system begins to consume him. Meanwhile, Bass attempts to absorb the VirusBeast, but is himself absorbed instead.