| Achievement | How to unlock
|
|---|
| Clear zone 1 on Easy (60 points) | Clear all levels in zone 1 on Easy.
|
| Clear zone 1 on Normal (160 points) | Clear all levels in zone 1 on Normal.
|
| Clear zone 2 on Easy (80 points) | Clear all levels in zone 2 on Easy.
|
| Clear zone 2 on Normal (180 points) | Clear all levels in zone 2 on Normal.
|
| Clear zone 3 on Easy (100 points) | Clear all levels in zone 3 on Easy.
|
| Clear zone 3 on Normal (200 points) | Clear all levels in zone 3 on Normal.
|
| Decakill (40 points) | Kill ten or more zombies with a shot.
|
| Double kill (20 points) | Kill two or more zombies with a shot.
|
| Eradicator (50 points) | Kill fifteen or more zombies with a shot.
|
| Pentakill (30 points) | Kill five or more zombies with a shot.
|
| Terminator (70 points) | Kill twenty or more zombies with a shot.
|
| Zombie killer (10 points) | Kill one or more zombies.
|