Hackworms are worm-like Mimics which burrow into the ground and hide with only their horn exposed. When an enemy approaches, the Hackworm will rise out of the ground spewing a stream of rocks from its maw in the direction of the opponent.
Tactics[]
Tips & Attacks[]
Just before the hackworm launches rocks at the character, it will swing away. At this point it is best to retreat slightly (Ferrics can backdash) and then return to continue the attack. Simply repeat this until dead. Retreating too far will cause the hackworm to hide underground, becoming invunerable to damage.
Be aware that hackworms will often launch a few last rocks as they die.
Aeronaut[]
Attack from range, then run inside the line of fire of rocks to attack again, and then retreat. Repeat until death.
Ferric[]
Run up to it when safe, attack (you should have time to land two hits), and retreat to a safe distance when it starts to attack. Repeat.
Crag[]
Run up to it and hit it with your whip, then jump back to avoid the rocks it spews. Alternatively, attacking whilst ducking allows Crags to stand, turn and run immediately, unlike a standing attack which will incur a pause.
Additional Information[]
Sprocket Information[]

From Mimics of Ridgeback Highlands: Hackworm:
- This pale Mimic burrows out of the ground and hacks up stones at anyone in sight.
First Encounter: Paydirt Summit
Quest Relevance[]
- In "Hackworm Study" (CY0061), the final regular Mimicology Quest at this time, the player must collect 40 Hackworm Horns and return them to Cypress in exchange for 100 XP, 1000 NP, and a Sprocket giving information on the Hackworm.
- In the Extermination Quest "Hackworm Extermination" (AS0046), the player must kill 50 Hackworms per day for three days for Admiral Stanton.
Trophy Farming[]

Hackworms Locations in Ridgeback Highlands
Lower Peak Checkpoint (8 in 16 rooms, 2 empty):
Go right, (up and) left. Kill two.
Go right, right, up, up, left. Kill one.
Go right, down. Kill one.
Go right. Kill one.
Go up, (left and) up, up. Kill one.
Go left. Kill one.
Go right. Kill the other one.
Go right, (up and) left to the Drop Point.
Kill at least 4 extra mimics per circuit to respawn.
For an easier Checkpoint route, just killing Hackworms and little worry about damage:
Mines Checkpoint (2 in 6 rooms, 4 empty):
Go left, down. Kill one.
Go up, up. Kill one.
Mine Exit Checkpoint (3 in 10 rooms, 4 empty):
Go left, (left and) down. Kill one.
Go up, (right and) down, down. Kill one.
Go up, left. Kill one.
Cable Car Checkpoint (3 in 8 rooms, 1 empty):
Go left, down. Kill one.
Go right, up. Kill two. (Careful: Cactigrub.)
Lower Peak Checkpoint (2 in 4 rooms, 1 empty):
Go right, (up and) left. Kill two.
Drop Point (2 in 4 rooms, 1 empty):
Go right, (down and) left. Kill two. (Can go left for another Hackworm.)