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

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 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

Kill a Gorilla within 5 seconds on difficulty Normal or higher

Kill a Gorilla within 5 seconds on difficulty Hard or higher

Kill a Gorilla within 5 seconds on difficulty Insane

Complete all Bezoar levels on difficulty Hard or higher

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

Collect 20 full N.A.N.O. bars

Kill 1000 enemies

Kill 200 enemies using environmental damage only

Destroy 500 destructible items

Find 25 secrets

Kill 20 enemies within 15 seconds on difficulty Easy or higher

Kill 20 enemies within 15 seconds on difficulty Normal or higher

Kill 20 enemies within 15 seconds on difficulty Hard or higher

Kill 20 enemies within 15 seconds on difficulty Insane

Kill 10 enemies with one shot on difficulty Easy or higher

Kill 10 enemies with one shot on difficulty Normal or higher

Kill 10 enemies with one shot on difficulty Hard or higher

Kill 10 enemies with one shot on difficulty Insane

Kill 2 Gorillas within 20 seconds on difficulty Easy or higher Easy or higher

Kill 2 Gorillas within 20 seconds on difficulty Normal or higher

Kill 2 Gorillas within 20 seconds on difficulty Hard or higher

Kill 2 Gorillas within 20 seconds on difficulty Insane

Destroy the Caul-Dron on difficulty Easy or higher

Destroy the Caul-Dron on difficulty Normal or higher

Destroy the Caul-Dron on difficulty Hard or higher

Destroy the Caul-Dron on difficulty Insane

Complete all Bezoar levels on difficulty Insane

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

Kill 10000 enemies

Kill 2000 enemies using environmental damage only

Destroy 5000 destructible items

Find all the secrets in Bezoar

Kill 30 enemies within 20 seconds on difficulty Easy or higher

Kill 30 enemies within 20 seconds on difficulty Normal or higher

Kill 30 enemies within 20 seconds on difficulty Hard or higher

Kill 30 enemies within 20 seconds on difficulty Insane

Kill 20 enemies with one shot on difficulty Easy or higher

Kill 20 enemies with one shot on difficulty Normal or higher

Kill 20 enemies with one shot on difficulty Hard or higher

Kill 20 enemies with one shot on difficulty Insane

Kill a Heavy Grenadier within 30 seconds on difficulty Easy or higher

Kill a Heavy Grenadier within 30 seconds on difficulty Normal or higher

Kill a Heavy Grenadier within 30 seconds on difficulty Hard or higher

Kill a Heavy Grenadier within 30 seconds on difficulty Insane

Destroy the Atlas on difficulty Easy or higher

Destroy the Atlas on difficulty Normal or higher

Destroy the Atlas on difficulty Hard or higher

Destroy the Atlas on difficulty Insane

Destroy the 'Shrimp' Construction Machine on difficulty Easy or higher

Destroy the 'Shrimp' Construction Machine on difficulty Normal or higher

Destroy the 'Shrimp' Construction Machine on difficulty Hard or higher

Destroy the 'Shrimp' Construction Machine on difficulty Insane

Destroy 20 CCTV cameras

Shoot down a Zeppelin

Unlock all achievements

Kill 50 enemies with electricity only

Complete all Barrens levels on difficulty Normal or higher

Blow up 30 fussion cells

Kill a Heavy Scarab on difficulty Easy or higher

Kill a Heavy Scarab on difficulty Normal or higher

Kill a Heavy Scarab on difficulty Hard or higher

Kill a Heavy Scarab on difficulty Insane

Destroy a CLN Gunship within 5 seconds on difficulty Easy or higher

Destroy a CLN Gunship within 5 seconds on difficulty Normal or higher

Destroy a CLN Gunship within 5 seconds on difficulty Hard or higher

Destroy a CLN Gunship within 5 seconds on difficulty Insane

Complete all Barrens levels on difficulty Hard or higher

Destroy 2 CLN Gunships within 20 seconds on difficulty Easy or higher

Destroy 2 CLN Gunships within 20 seconds on difficulty Normal or higher

Destroy 2 CLN Gunships within 20 seconds on difficulty Hard or higher

Destroy 2 CLN Gunships within 20 seconds on difficulty Insane

Use the blowers to destroy all 20 Bird-bots on the Crusher level on difficulty Easy or higher

Use the blowers to destroy all 20 Bird-bots on the Crusher level on difficulty Normal or higher

Use the blowers to destroy all 20 Bird-bots on the Crusher level on difficulty Hard or higher

Use the blowers to destroy all 20 Bird-bots on the Crusher level on difficulty Insane

Complete all Barrens levels on difficulty Insane

Find all the secrets in Barrens

Kill a Heavy Scarab within 20 seconds on difficulty Easy or higher

Kill a Heavy Scarab within 20 seconds on difficulty Normal or higher

Kill a Heavy Scarab within 20 seconds on difficulty Hard or higher

Kill a Heavy Scarab within 20 seconds on difficulty Insane

Destroy the Overseer on difficulty Easy or higher

Destroy the Overseer on difficulty Normal or higher

Destroy the Overseer on difficulty Hard or higher

Destroy the Overseer on difficulty Insane

Use the hydraulic presses to crush all 9 Gorilla-bots on the Factory level on difficulty Easy or higher

Use the hydraulic presses to crush all 9 Gorilla-bots on the Factory level on difficulty Normal or higher

Use the hydraulic presses to crush all 9 Gorilla-bots on the Factory level on difficulty Hard or higher

Use the hydraulic presses to crush all 9 Gorilla-bots on the Factory level on difficulty Insane

Complete all Bezoar and Barrens levels in Heroic mode

Kill 5 enemies with one shot on difficulty Easy or higher

Collect 41 full N.A.N.O. bars