Spikey, known as Garū (ガルー,Garū?) in Japan, is a virus from the Mega Man Battle Network series. They are large canine-like viruses that spit fire. In Mega Man Network Transmission, their attack patterns are very similar to the Friender enemies in Mega Man 2. They also teleport around the field very fast unless they stop to attack. The variants are faster and the attacks explode in different directions depending on their level.
The Battle Chips from the Spikey family are Heat Shot (ヒートショット,Heat Shot?), Heat-V (ヒートブイ,Heat-V?), Heat Side (ヒートサイド,Heat Side?) and Heat Cross (ヒートクロス,Heat Cross?), Fire element versions of the Battle Chips Shotgun, V-Gun, Side Gun and Cross Gun. In the third game they can be summoned from the Virus Breeder with the Spikey Battle Chip.