Unlock every single weapon.

Fully upgrade any weapon.

Install the full-auto trigger group mod on the Auto-5.

Install any trigger group mod on any pistol.

Purchase all upgrades for every single moddable weapon.

Unlock all ammo types.

Install the suppressor on the MK4.

Equip a pistol with a suppressor and subsonic ammo.

Install an infrared laser pointer on any weapon.

Kill 1 enemy with fire.

Kill 3 enemies with a single fire source.

Kill 7 enemies with a single fire source.

Knock out 5 lights with a single charge of the PKC-EMP.

Knock out an enemy with a Gas Grenade.

Knock out 3 enemies with a single Gas Grenade.

Knock out 7 enemies with a single Gas Grenade.

Fully exhaust the uses on Bullet time in a single level.

Finish the game without using Bullet Time.

Get an additional soda can out of a vending machine.

Get a throwable object from a dumpster.

Drink soda.

Reach $25,000.

Finish the campaign.