Go-Gangs, the modern form of Biker Gangs, who menace the plex's highways and streets are one of the rampant problems of the Seattle Megaplex (as well as of nearly any plex in North America as well as outside. Go-Gangs are groups of from 50 to 100 men and women on motorcycles or other vehicles who engage in a large variety of crimes. Some focus on arms or drugs trafficking, while others engage in small time thievery—stickups and robbing other motorists. The Go-Gangers often modify their vehicles to make them look more fearsome by the addition of metal spikes, shark fins and all sorts of armoring. Most bikes also carry at least one slug-throwing weapon welded onto the chassis. These can be fired from the front of the side of the bike.