Rockbugs are Mimics that camouflage themselves to hide amongst the floor debris. There are several types of rockbugs, but they all use the same tactic. They are fairly easy to kill, but annoying if you don't see them and land on top of one.
Tactics[]
Tips & Attacks[]
Rockbugs are invincible while they are not moving. Attack when they stand up and start moving.
Aeronaut[]
Stand next to the Rockbug when it is not moving. Use the Steamshot on it. When it starts moving again, it will instantly take damage.
Ferric[]
When it is moving, go next to it and attack or divebomb from above. You can usually kill it in one hit.
Crag[]
Crouch next to it and attack. Jump over it and attack down if it gets too close. You can also simply swing into it, if it's standing, for an easy kill.
Additional Information[]
Sprocket Information[]

From Mimics of Steamport City: Rockbug:
- This camouflaged Mimic hides in a protective shell made of material from its surroundings.
First Encounter: Gearlock Factory
Quest Relevance[]

A hat-wearing Rockbug.
- The player must kill 12 hat-wearing Rockbugs and retrieve the Brown Top Hats in the Daily Quest "Hats on the Summit" (LW0006) and return them to Lana Westwood.
- The player must collect 40 Rockbug Paws and return them to Cypress in the Mimicology Quest "Rockbug Study" (CY0046).
Trophy Farming[]
Checkpoint Route: Kill 5 Rockbugs per circuit. Kill 6 other mimics per circuit to renew.

Rockbugs Locations in Steamport City
Sump Pump Checkpoint: Go right, up. Kill 2.
Factory Mid Checkpoint: Go left, (up and) right. Kill 1.
Sewer Entrance Checkpoint: Go right 4 times. Kill 2.

Rockbugs Locations in Ridgeback Highlands
If the checkpoint jumping seems slow then you can go 4 rooms right of the sewer checkpoint, killing all mimics in the room before the rockbugs, then go through and kill all slugrats and then the rockbugs, go up and kill the 5 flies and quilltoad, go back two rooms, kill the batowls, the rockrat and one grabrat, this should be enough to respawn the slugrats and rockbugs, repeat. This route contains: 5 pidgeflies, 5 slugrats, 2 rockbugs, 2 batowls, one quilltoad, one rockrat and a grabrat.