Lurker

Lurkers are monsters that appear in the Dark Caves.

Behavior
They show up as a small flat green spot on the ground and attack the player when stepped on after a short delay causing 4-16 damage. They can detect the player even through stealth.

Abilities
They can stay underground and be immune to any kind of damage.

Tactics
The easiest and safest way to deal with a lurker is to run directly over and past it, then turn around and attack it before its attack animation ends.

Switching to your fists will allow a fast enough attack.

Champion lurker
They show up as a small flat purple spot on the ground and attack the player rapidly when stepped on dealing 10-13 damage they can also freely move horizontally on land the only restriction being platforms.