Zap Zombies iOS game

Zap Zombies is a free, clicker style, simple RPG. Slay the zombies with your fully-armed survivors. Upgrade their skills in the laboratory. Implant Biochips in survivors.Tap faster and faster to make the Survivors fight harder and harder! ::: SLAY ZOMBIES! ::: Tap your screen like there's no tomorrow to acquire more Enzymes and Power. Annihilate the zombies! ::: COLLECT ENZYMES! ::: Zombies drop Enzymes, an important resource for upgrading survivors. You can also collect Enzymeswhile off-line! ::: UPGRADE SURVIVORS! ::: Upgrade your survivors to become stronger and faster. Find more survivors when you collect Enzymes from the battle. ::: AWAKEN AND GET BIOCHIPS! ::: You can start your life all over again with a critical opportunity:Implant biochips in your survivors so they can slay the zombies faster than ever before! ::: SKILLS IN THE LAB! ::: Upgrade survivors with special skills: stronger Criticals and Gun Damage ::: MINING GOLD! ::: Gold is essential to upgrading laboratory