Mushy

Mushy, known as "Chamush" (チャマッシュ) in Japan, is a virus from the Mega Man Battle Network series that moves only on grass panels and attacks by spreading spores around itself. It moves close to its victim and emits these spores. If it is placed in a position where no grass panels are available on the field, it will become immobilized.

Battle Chips
Spice, known as Bad Spice (バッドスパイス) in Japan, is the Battle Chip from Mushy viruses. It spreads harmful spores on all grass panels.

Mushy also has a Battle Chip from the Virus Breeder.