Drill Lurker is a Gene Tonic in BioShock 2. It decreases the sound of the player's footsteps and increases melee damage against unaware enemies. An even greater damage bonus is applied when the player is using the Drill. This tonic has a similar effect to the Wrench Lurker tonic from BioShock.

Drill Lurker “ Why take enemies straight on? Lurker allows you to make the most of your opportunities when your antagonist is caught off-guard. ” Effect: Quietens the player's footsteps and increases melee damage against unaware enemies Location: Can be purchased at Gatherer's Gardens in levels from Pauper's Drop onward. Cost: 30 ADAM

Minerva's DenEdit

Found in a Vacuum Bot (among a single shoe) in a sideroom past the Executive Wing's Mag-lock door, in Minerva's Den (Level). Unobtainable in Gatherer's Gardens.