Story: Complete the first level.

Story: Complete level 4.

Story: Kill Kim Bong Sik, without getting hit by his projectiles.

Story: Kill Teniu the Grave, dodging all the crates.

Story: Kill Bloodshot avoiding all his melee attacks and slapping his face everytime you can.

Story: Complete the last level.

Story: Find and shoot all the hidden objects in the game.

Story: Perform 3,000 headshots.

Story: Perform 200 nutshots.

Story: Get a 4 Star global ranking at the end of all levels.

Story: Complete the last level in Crazytrain difficulty.

Arcade: Get an S ranking at the end of level 1, on any difficulty setting.

Arcade: Get an S ranking at the end of level 2, on any difficulty setting.

Arcade: Get an S ranking at the end of level 3, on any difficulty setting.

Arcade: Get an S ranking at the end of level 4, on any difficulty setting.

Arcade: Get an S ranking at the end of level 5, on any difficulty setting.

Arcade: Get an S ranking at the end of level 6, on any difficulty setting.

Arcade: Get an S ranking at the end of level 7, on any difficulty setting.

Arcade: Perfom 500 headshots in Slomo.

Arcade: Get the "All enemies killed" bonus at the end of each level, on any difficulty setting.

Arcade: Kill 25 enemies in one game while in Slomo in level 5, on Abnormal.

Arcade: Get the golden AK-47 once in all levels, on Abnormal.

Arcade: Beat the 2,100,000 point score at the end of level 2, on Crazytrain.

Arcade: Beat a fast-forward time of 1 min 05 sec in level 6, on Normal.