Solve all case files in Co-op.
Play and win in all 9 TIR events.
Finish in first place in a TIR episode.
Come in first place in a single TIR event.
Kill 5,000 zombies.
Continue playing to unlock this secret achievement.
Stick it to a zombie by covering him in weapons and objects!
Revive another player in Co-op.
Fill all entries in the notebook.
Kill 500 zombies.
Kill 53,596 zombies.
Kill 72,000 zombies.
Defeat 5 psychopaths.
Defeat 10 psychopaths.
Kill 1,000 zombies barehanded.
Kill 1,000 zombies while riding a motorcycle.
Use every type of firearm on a zombie.
Use every type of melee weapon on a zombie.
Use every type of ranged weapon on a zombie.
Use every type of explosive on a zombie.
Use every type of novelty weapon on a zombie.
Escort 8 survivors at once.
Save 10 survivors.
Save 50 survivors.
Create a combo weapon.
Create all combo weapons.
Reach level 25.
Reach level 50.
Change into 10 different pieces of clothing.
Change into all the clothes in the game.
Complete The Facts.
Mix a drink.
Create and consume all mixed drinks in the game.
Eat all types of food in the game.
Kill 1,000 "special" zombies.
Give Katey a gift.
Give Katey every possible gift.
Complete Overtime Mode.
Spend $6,000,000 in Fortune City.
Enter all the stores in the game.
Have 10 zombies with masks on at once.
Spraypaint all Zombrex posters.
Give your bike a custom paint job.
Collect all combo cards hidden in Fortune City.
Collect all survivor combo cards.
Collect all combo cards from psychopaths.
Collect 25 combo cards.
Collect all combo cards.
Smash 100 zombies using the Smash skill move.
Tame Snowflake.
