Use the mininuke to eliminate 100 enemies at once.
Party like it's 199.
Sign Secchi's rifle.
Assist a couple of young ladies out hunting.
Find out what happened to the English airman.
Protect humanity's treasures from invaders with no taste.
Head into Rome. Ditch Rodriguez.
Meet a powerful granny.
Make 20 enemies kill each other using Psychotropic Grenades.
Make sure Gabriella is OK.
Kill a Witchbride using C4.
Kill 100 enemies with a headshot.
Unlock 10 S.A.M.s in a single playthrough.
Melee a big enemy.
Beat the game on any difficulty.
Send Mental a message he won't forget.
Kill 5 enemies in a row while your health is below 10 HP.
Escape the Oil Rig.
Finish a text adventure. On an oil rig. During an alien invasion.
Get justice. Get the Holy Grail. Get screwed over.
Go on a date with Hellfire.
Kill 20 enemies while dual wielding double shotguns.
Dismember 50 enemies with cannonballs.
Navigate the citadel of Carcassonne. Start reassembling your team.
Get a weaponized black hole, using science.
Save a princess. Doesn't get more classic than that.
What if you could talk to the monsters?
Achievement is your middle name.
Destroy 10 propaganda drones.
Cross the French countryside and get very cross.
Kill 50 healthy Kleers with a direct double shotgun hit.
Kill an Aludran Reptiloid using nothing but a pistol.
Kill 11 different enemies using melee attacks.
Discover Fulbert's great invention.
One-shot kill 3 Werebulls with a shotgun.
Don't fear the reaper. Be the reaper.
Harvest 100 enemies with a combine harvester.
Ride the Popemobile to victory.
Spend 1000 minigun rounds while firing continuously.
Assist Dr. Vermetti in his war on worms.
Run away from an angry volcano you foolishly antagonized.
Collect scorched aliens for Professor Kiesel.
Die HAARP With A Vengeance.
Kill a Belcher using Belcher collateral barf damage.
Kill 5 enemies during a single Time Warp slowdown.
Recover the alien artifact located by Dr. Stein.
Find out what happened to Alessandro.
Recover a key stolen by a cultist.
Get together with your friends and kill something big.
Fight alongside Massimo Murena.
Unlock a S.A.M.
Save the rookie. Find Father Mikhail. See the sights.
Kill 3 enemies with a double shotgun blast.
Get knocked on the head and remember how you got here.