Defeat 500 zombies.
Defeat 1000 zombies.
Defeat 1500 zombies.
Defeat 2000 zombies.
Defeat 2500 zombies.
Deal 100000 damage in total with any units.
Deal 500000 damage in total with any units.
Deal 1000000 damage in total with any units.
Deal 5000000 damage in total with any units.
Deal 10000000 damage in total with any units.
Destroy zombies' armor 250 times.
Destroy zombies' armor 500 times.
Destroy zombies' armor 750 times.
Destroy zombies' armor 1250 times.
Destroy zombies' armor 1750 times.
Deploy 250 units in total.
Deploy 500 units in total.
Use any gadgets 100 times.
Use any gadgets 250 times.
Use any gadgets 500 times.
Use items 3 times.
Use items 5 times.
Use items 10 times.
Swap elevator 100 times.
Swap elevator 250 times.
Swap elevator 500 times.
Clear 15 stages with the highest grade.
Clear 30 stages with the highest grade.
Clear 45 stages with the highest grade.
Equip badges to a unit with total Lv. 10.
Equip badges to a unit with total Lv. 20.
Equip badges to a unit with total Lv. 30.
Equip badges to a unit with total Lv. 40.
Equip badges to a unit with total Lv. 50.
Fuse Badges 50 times.
Fuse Badges 100 times.
Fuse Badges 200 times.
Acquire 25 medals.
Acquire 50 medals.
Acquire 75 medals.
Acquire 125 medals.
Acquire 175 medals.
Acquire 75000 gold in total.
Acquire 125000 gold in total.
Acquire 250000 gold in total.
Acquire 500000 gold in total.
Acquire 1000000 gold in total.
Fire a total of 1000 mini stun shots.
Fire a total of 2500 mini stun shots.
Fire a total of 5000 mini stun shots.
Deal 10000 damage in total with burn effect.
Deal 50000 damage in total with burn effect.
Deal 250000 damage in total with burn effect.
Stun zombies for 100 secs in total.
Stun zombies for 250 secs in total.
Stun zombies for 500 secs in total.
Slow zombies for 1000 secs in total.
Slow zombies for 2500 secs in total.
Slow zombies for 5000 secs in total.
Fire a total of 500 critical shots.
Fire a total of 1250 critical shots.
Fire a total of 2500 critical shots.
Hit 2500 zombies in total with piercing shot.
Hit 5000 zombies in total with piercing shot.
Hit 10000 zombies in total with piercing shot.
Fire a total of 500 knockback shots.
Fire a total of 1250 knockback shots.
Fire a total of 2500 knockback shots.
Hit 5000 zombies in total with chain lightning.
Hit 10000 zombies in total with chain lightning.
Hit 20000 zombies in total with chain lightning.
Defeat 100 zombies in total with death shot.
Defeat 250 zombies in total with death shot.
Defeat 500 zombies in total with death shot.
Deal 100000 damage in total with laser shot.
Deal 500000 damage in total with laser shot.
Deal 2500000 damage in total with laser shot.
Defeat 100 zombies in total with HP break.
Defeat 250 zombies in total with HP break.
Defeat 500 zombies in total with HP break.
Destroy zombies' armor 100 times in total with armor break.
Destroy zombies' armor 250 times in total with armor break.
Destroy zombies' armor 500 times in total with armor break.
Defeat 100 zombies in total using Minigunner.
Defeat 250 zombies in total using Minigunner.
Defeat 500 zombies in total using Minigunner.
Defeat Gamma.
Defeat Abomination.
Defeat Colossal.
Defeat Nightmare.
Defeat Antihero.
Defeat Buurieza.
Defeat Gargantuan.
Defeat Gargantuan X.