Magma Worm

The Magma Worm is a Boss Monster in Risk of Rain 2, and was in the original game. Being a Boss, the Magma Worm may be encountered after initiating a stage's Teleporter Event. It can otherwise spawn naturally during higher difficulties.

The Magma Worm has a stronger variant, the. The Overloading Worm is not considered an Elite Magma Worm, but rather a unique Monster.

Environments

 * Rallypoint Delta
 * Abyssal Depths
 * Siren's Call
 * Sky Meadow
 * Bulwark's Ambry

Behavior
Magma Worms do not attack players in the same vein as other bosses; their primary form of attack is to ignite targets that make contact. Each time a Magma Worm emerges from the ground, the screen changes color to a bright orange to signify the heat. Instead of traditional attacks, the Magma Worm instead has multiple modes of movement.

All attacks have a Proc Coefficient of 1.0.

Leaping
The Magma Worm erupts out of the ground and launches itself into the sky, before burrowing back into the ground once more. It will attempt to emerge from the ground close to its target to ignite them, and it will aim at a target as it prepares to burrow again. Wherever the Worm exits or enters the ground, it causes molten fireballs to erupt from the ground, which explode on impact.

Grounded
The Magma Worm burrows quickly in and out of the ground and remains in close proximity to its target. When it moves like this, it does not cause fireballs to appear.

Loot
Main Article: Molten Perforator

If the Magma Worm is the Teleporter Boss, there's a chance the Uncommon item you would get as a reward for defeating the Teleporter Boss could be replaced by its Boss item,.

Tips

 * It is advisable to fight Magma Worms in wide open spaces, as fighting them in cramped spaces can be troublesome. For example, in Rallypoint Delta's caves, when the Worm leaps, you are not only unable to efficiently damage the boss (as it continuously disappears into the rock above), but you are unable to see where the Worm is about to land as it burrows back into the ground. In a situation where a Magma Worm is spawned from a Teleporter placed in an unfortunate position, it may be a good idea to lead the worm to a more suitable fighting area before returning to the Teleporter area.
 * Marking the Magma Worm (middle mouse button by default) can help keep track of it when it travels inside terrain.
 * Because of how much ground they traverse compared to other enemies, it is possible that Magma Worms may change targets mid-attack if a new potential victim comes into range. This might be another player, or even an unlucky turret.