Complete all Bezoar levels on difficulty Normal or higher

Complete any other level than the first one with no deaths on difficulty Normal

Collect 10 full N.A.N.O. bars

Kill 100 enemies

Kill 20 enemies using environmental damage only

Destroy 50 destructible items

Blow up 50 explosive barrels

Find 5 secrets

Buy all CLN Firearm Upgrades

Buy all N.R.G. Weapon Upgrades

Buy all Combat Gear Upgrades

Kill a Heavy Grenadier on difficulty Easy or higher

Kill a Heavy Grenadier on difficulty Normal or higher

Kill a Heavy Grenadier on difficulty Hard or higher

Kill a Heavy Grenadier on difficulty Insane

Kill 10 enemies within 10 seconds on difficulty Easy or higher

Kill 10 enemies within 10 seconds on difficulty Normal or higher

Kill 10 enemies within 10 seconds on difficulty Hard or higher

Kill 10 enemies within 10 seconds on difficulty Insane

Kill 5 enemies with one shot on difficulty Easy or higher

Kill 5 enemies with one shot on difficulty Normal or higher

Kill 5 enemies with one shot on difficulty Hard or higher

Kill 5 enemies with one shot on difficulty Insane

Kill a Gorilla within 5 seconds on difficulty Easy or higher