The weapon class that includes the Splat Roller is Roller.
Rollers are close-range weapons designed around spreading large amounts of ink across the ground. The Splat Roller is one of the class’s foundational examples: players can push it along the floor to paint a wide path, swing it vertically or horizontally to attack, and use it to move quickly through friendly ink.
Rollers reward ambushes and map awareness. A player can hide in ink, approach an opponent, and attack at short range, while the weapon’s painting ability helps establish routes for teammates. Different Roller variants change attributes such as range, damage, mobility, or associated sub-weapons and specials.
A common mix-up is confusing a weapon class with its attack style. Sloshers throw ink from buckets, Chargers specialize in charged long-range shots, and Shooters fire repeated ink shots. The Splat Roller belongs to the Roller family because its defining tool is the rolling and swinging ink weapon.