MUL-T: Pest Control

 is a challenge in Risk of Rain 2. It is completed by defeating two without leaving the Teleporter zone as.

Completing it awards the ability to select the in  loadout.

Tips

 * are common bosses for both Stage 1 and Stage 2.
 * doubles the amount of bosses and halves each of their health, making them easily manageable even with few items.
 * Shrines of the Mountain also double the amount of bosses, but may be more difficult.
 * The most detrimental aspect of this challenge may be that are large and obstructive, and summon many  that may further obstruct the Teleporter ring, especially when the Teleporter is on uneven ground. Be mindful not to accidentally step outside of the circle.