16.53%Get Some GrubSquish every antlion grub in Episode Two.18.11%Neighborhood WatchSave all buildings outside the missile silo from destruction.18.85%Little Rocket ManSend the garden gnome into space.20.46%Gnome AloneIf you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space. If you did not also receive the achievement 'Manufacturing Ascent', Newell has abandoned his plans to shoot Noam Chomsky into space.21.78%Hot Potat0wnedKill a Combine soldier with his own grenade.23.36%Puttin' On a ClinicDefeat the chopper in Episode Two without any misses.24.74%Piñata PartyFind and break every web cache in Episode Two.29.99%PaybackKill a Hunter with its own flechettes.37.02%Bone BreakerKill 30 enemies with thrown physics objects.49.55%Hit and RunRun over 20 enemies with the car in Episode Two.
