Scutlix Gunner

The Scutlix only exists while Martian Madness is running, so you cannot go looking for one. That event begins when a Martian Probe finishes scanning you and escapes, and probes only start appearing after Golem is dead. Nothing about it spawns on its own outside that window.

What looks like one enemy is two. The mount and the Scutlix Gunner on its back keep separate health bars and die separately, and whichever survives keeps coming at you. Kill the mount first and the rider drops down as an ordinary Ray Gunner, which quietly costs you both its own banner and any shot at the Brain Scrambler. The rider has to die in the saddle to count.

That rule makes lava useless here, since a pit burns the mount out from under the gunner long before the gunner is in danger, and a farm built that way produces none of what you wanted. Minions that pick their own targets help: the Desert Tiger Staff and Xeno Staff both tend to go after the rider. With a gun or a bow, aim slightly above ground level so shots pass over the animal and into the gunner, who has less health to chew through anyway.

On contact the mount hits harder than anything in the event short of the saucer, so letting one reach you can end a run in a couple of touches. It fires nothing, whatever the bestiary implies. Every laser comes from the rider, which is one more reason to strip that off and then deal with an animal that can only charge.