Basic melee Darkspore, they hobbled towards Heroes who wandered into their territory, and attacked with their club-like feet. Upon death, they burst, leaving explosive spheres imbedded in the desert sands.
Prowling the pits and craters of Scaldron, the creatures that became the kinetic mines were once humble geophages, subsisting on Scaldron's rich deposits of silicate minerals. Once the Darkspore mutated them, the mines became aggressive, even rampaging, attacking any creatures they saw. Their thorny exterior serves as offensive armor--any attempt to fight them physically guarantees the attacker will suffer at least as much as his target. When mines die, their bodies emit pustules that metastasize into a super-combustible ichor. Merely stepping near those pustules triggers them to explode.
Kinetic Mines themselves were best dealt with from a distance. This was perhaps one of the few instances where AOEs were an unwise choice, as the player would find themselves completely surrounded by mines, several of which were right under the Hero, exploding instantly. Sage and Savage's pets could also be used to set off the mines for you.