Drifters are green air-mice that have pistols, air-flaps and drive fins. Rapid-drifters are red other than green.
Drifters have the most equipment of the smaller enemies. They have drifter pistols and drive fins and air-flaps and whatnot to control their driving.
They have drifter pistols.
It is impossible to evade these bots, although you can hit them with your weapons.