During the battle, the armor is used first, and then the health. To pick up or restore armor, step on the armor icon. The amount of maximum armor can be increased by levelling up your heroes and their abilities.

A first-aid kit can restore a part of your health. To restore your health, tap on the first-aid kit icon on the right side of the screen. The higher the level of the hero you have, the more first-aid kits you can use in a row. Your heroes are vulnerable during healing — they cannot defend themselves, and their movement is slowed down. To interrupt the healing process, tap on the first-aid kit icon again. It's also important to remember that your health is restored gradually, not instantly!

Heroes such as Arnie, Cyclops, Sparkle, Hurricane, Levi, Doc, Satoshi, and Stalker have an ability to restore armor and health not only to themselves but also to allies if they are within the radius of the ability.