The Cazafantasmas Members
Cazafantasmas Bikers are the grunts of the paranormal investigating group. Similar to Roaders and Motobugs, they accelerate at high speeds, attempting to ram into the player. Some of them also drop devices that produce a shock like Trejo's down B. They have high health, and they take a while to turn around before speeding in the opposite direction.
Role in the Subspace Emissary
After Jaime Maussan and Haruhi defeat Toon Pyron and turn him into a trophy in Camp of Stars, Carlos Trejo speeds in and snatches the Pyron trophy before Maussan can. He then taunts the ufologist duo, calling Maussan a fraud and Haruhi a whore, before boosting off and sending his gang of bikers to defeat the ufologists. The bikers fail, and Maussan and Haruhi track down Trejo using Trejo's motorcycle tracks. Trejo retreats to his lair, in front of the Drevis residence, where the screams of a little girl can be heard.