11.04%
Unified Coupling Theorum
Help the Barnacle and Headcrab find true love.
11.93%
Ethically Questionable
Conduct all of the questionable research experiments.
12.29%
Kinetic Repulsion
Kill a Marine with their own grenade.
12.62%
Futile Resistance
Kill 10 enemies with Snarks.
14.11%
Hyper Saturation Conundrum
Drown in Lambda Core's coolant.
16.42%
Digital Wizardry
Kill 10 enemies with a reprogrammed Sentry.
18.44%
Resonance Procrastinator
Refuse to insert the specimen into the Anti-Mass Spectrometer.
18.88%
Remote Detonation
Kill a Barnacle with a Satchel.
19.01%
Nuclear Fishin'
Kill an Icthyosaur with either the Tau or Gluon.
19.85%
Universal Gravitation
Get killed by your own Snarks.
22.28%
Well-Done
Cook a Grenade for too long.
24.99%
Calculated Trajectory
Kill 10 Airborne Headcrabs using the Shotgun.