Roller

Rollers resemble larger-sized Latchers. Unlike their smaller counterpart, Rollers will jump at players with hidden blades extended and continue until they are destroyed. Each hit will stun a player, making them dangerously obnoxious, especially when they gang up on one confronted by other Grineer. While not very sturdy, Rollers' speed and size make them difficult targets.

Trivia

 * Rollers were first introduced in update 6.
 * ​They were originally smaller and named Grinders when first released.
 * The Grineer Roller is one of the few enemy types to have proper capitalization in its name ingame, rather than the usual all capitals.