11.06%
Unified Coupling Theorum
Help the Barnacle and Headcrab find true love.
11.95%
Ethically Questionable
Conduct all of the questionable research experiments.
12.35%
Kinetic Repulsion
Kill a Marine with their own grenade.
12.64%
Futile Resistance
Kill 10 enemies with Snarks.
14.17%
Hyper Saturation Conundrum
Drown in Lambda Core's coolant.
16.43%
Digital Wizardry
Kill 10 enemies with a reprogrammed Sentry.
18.53%
Resonance Procrastinator
Refuse to insert the specimen into the Anti-Mass Spectrometer.
18.93%
Remote Detonation
Kill a Barnacle with a Satchel.
19.06%
Nuclear Fishin'
Kill an Icthyosaur with either the Tau or Gluon.
19.90%
Universal Gravitation
Get killed by your own Snarks.
22.33%
Well-Done
Cook a Grenade for too long.
25.03%
Calculated Trajectory
Kill 10 Airborne Headcrabs using the Shotgun.