KillPlant

KillPlant (キルプラント) is a virus from the Mega Man Battle Network series. They are stationary plant-type viruses that spit out seeds. If the seed does not land on a target, it stays on the panel. A few seconds later, the seed turns into a target-seeking wooden spike.

KillPlant
KillPlants are red-orange with a light-green base.

KillWeed
KillWeeds are blue with a dark-green base.

KillFleur
KiilFleurs are black with a purple base.

KillPlantΩ
KillPlantΩs are exclusively in Phantom of Network.

Battle Chips
Tree Bomb, known as Forest Bomb (フォレストボム) in Japan, is the Battle Chip family from KillPlant viruses. The user throws a seed three squares ahead. After a while, it grows into a Wood Tower and moves forward. The seed will automatically change when hit with an Aqua attack.

Trivia

 * KillPlant was nicknamed Tanemaki-kun (種まき君) during development.