Steam Achievements
| Unlockable | How to Unlock |
|---|---|
| Combo Master | Make a 10,000 points combo. |
| Die Zombies Die !! | Kill 3,000 zombies in a single mission. |
| Guns of Glory | Fully upgrade all weapons. |
| I Am The Law! | Unlock the police squad car. |
| I like My Car Clean. | Finish the game without buying any car upgrades. |
| Missed Flight | Progress to the airport base. |
| Pimp Car | Fully upgrade one car. |
| Sunken Hope | Move to the harbor base. |
| Superbeast | Unlock the military prototype super car. |
| The Last Express | Progress to the train station base. |
| Very Important Person | Unlock the mayor's White Limousine. |
| Zombie Driver | Complete the game. |
