Zombo Buster Advance achievements

Hit 5000 zombies in total with piercing shot.

Fire a total of 1250 knockback shots.

Hit 10000 zombies in total with piercing shot.

Fire a total of 2500 knockback shots.

Fire a total of 500 knockback shots.

Defeat 100 zombies in total with death shot.

Defeat 250 zombies in total with death shot.

Defeat 100 zombies in total with HP break.

Destroy zombies' armor 250 times in total with armor break.

Destroy zombies' armor 500 times in total with armor break.

Defeat 250 zombies in total using Minigunner.

Defeat 500 zombies in total using Minigunner.