Roller

The Roller is a reoccurring enemy that you will encounter in Wave Survival and Tiers of Heck modes (and Versus if the modifier Intrusive AI is activated).

Rollers will haphazardly charge towards the player and attempt to ram into them with their burning hot chassis. As they take damage, they will lose pieces of their outer ring. Once every piece has been destroyed, the enemy will be killed.

## Behavior

Rollers will slowly float towards the player when outside of their aggro range. If the player moves near them, they will begin chasing at high speed. Coming into contact with a Roller will kill the player.

## Strategy

### Railvolvers

The Railvolver is easily the best weapon to fight against Rollers of every variety. Their slow and predictable movement makes them very easy targets, and the Railvolver shot is able to kill every variant in only one hit.

### Explosives

It is important to be cautious when using explosives on Rollers, as Grenades and Sticky Grenades will detonate on contact with them, even if the grenade isn't armed. This includes explosives that have been left on the ground and not picked up. They will also detonate Laser Mines that they touch.

### Particle Blades

It is highly recommended not to use a Particle Blade to deal with Rollers, as they only take half damage from them. Attacking a Roller with a Particle Blade is a waste of its durability. However, the Particle Blade is the most reliable means of keeping them away from you, as they take large knockback when hit with one.

## Variants

### Plasma Roller

Plasma Rollers behave identically to the standard variant, but have substantially more health. It takes a whole five hits with a Particle Blade to kill them. However, they can still be killed in one hit with the Railvolver, so it is highly recommended to use one when fighting Plasma Rollers.

They are also called **Power Rollers** in game resources.

### Explosive Roller

The Explosive Roller will begin beeping rapidly when it comes close to a player. After 5 beeps, the roller will explode, killing all enemies and players caught within the blast radius. If the enemy is killed before it is able to begin detonating, it will stop moving and explode after a short period. The enemy is not considered dead until the core explodes. This enemy can be used to your advantage by activating it near other enemies.

## Appearances

### Wave Survival

* The basic Roller will begin spawning on Wave 2, making it the second enemy that you encounter
* Plasma Rollers will begin spawning on Wave 13
* Explosive Rollers will begin spawning on Wave 10

### Tiers of Heck

* On Basic Heck (Level 1), three basic Rollers will spawn on Wave 2
* On Boomstick (Level 1), three Plasma Rollers will spawn on Wave 3
* On Explosive Distancing (Level 2), two Explosive Rollers will spawn on Wave 1, then three more on Wave 2, then finally four more on Wave 3
* On No Ammo (Level 2), two Plasma Rollers will spawn on Wave 3
* On Wheel of Boom (Level 3), two basic Rollers will spawn on Wave 1
* On Fragile (Level 3), three basic Rollers will spawn on Wave 2, then three Plasma Rollers on Wave 3
* On Hanging Mines (Level 4), three Plasma Rollers will spawn on Wave 4.
* On Explosive Distancing 2 (Level 5), two Explosive Rollers will spawn on Wave 1, then four more on Wave two, then six more on Wave 3, then finally eight more on Wave 4
* On No Ammo 2 (Level 6), three Plasma Rollers will spawn on Wave 3
* On Beaming (Level 6), three basic Rollers will spawn on Wave 1, then six on Wave 3
* On Hecksaw (Level 7), two basic Rollers will spawn on Wave 1, then three Plasma Rollers on Wave 2
* On X-Ray (Level 8), two basic Rollers will spawn on Wave 3
* On Highground 3 (Level 8), two Explosive Rollers will spawn on Wave 5
* On Sniper (Level 8), six Plasma Rollers will spawn on Wave 1
* On Very Explosive (Level 9), two Plasma Rollers will spawn on Wave 1, then four Explosive Rollers on Wave 3
* On Endurance (Level 9, three basic Rollers will spawn on Wave 2, then three Explosive Rollers on Wave 6, then finally three Plasma Rollers on Wave 9

## Trivia

* Because of their simple faces and six legs similarly to the player, it is possible that the Rollers were originally Spiders that have been captured, enslaved, and turned into robotic soldiers by the Wasps
* Neverjam stated in his CREATING MONSTERS! devlog that the Explosive Roller was originally intended as a joke, but was eventually added as a way to punish spawncampers

## Gallery

A basic RollerThe original concept art for the Explosive RollerThis Roller has taken substantial damage and has lost a piece of its shell