Here is the full list of all 31 DeadShotZ achievements.
Store 10 first aid kits
Store 25 first aid kits
Store 50 first aid kits
Buy the Uzi weapon
Buy the Machine Gun weapon
Buy the Rocket Launcher weapon
Reach the Dark Woods area
Reach the Mayor Mansion area
Reach The Graveyard area
Reach the Dead Sewers area
Reach the Genetic Lab area
Kill 20 zombies
Kill 500 zombies
Kill 2000 zombies
Kill 8000 zombies
Kill 12000 zombies
Kill 20000 zombies
Score 10 combo kills
Score 30 combo kills
Score 100 combo kills
Score 300 combo kills
Score 500 combo kills
Die for the first time
Reach level 2
Reach level 5
Reach level 10
Reach level 20
Reach level 30
Buy the Stun Gun weapon
Buy the Shotgun weapon
Buy the Flamethrower weapon