Virus

The Virus Trio consist of three viruses called Red Virus(Fever), Blue Virus(Chill), and the Yellow Virus(Weird).They are pretty much the main antagonist of the Dr. Mario franchise.The only way to kill them is to line up the 6 different capsules on top of and along side of the viruses.They are also a trophy in Super Smash Bros. Melee.In the Super Mario Adventures, the viruses made a cameo as guests at Bowser's wedding.