This is my second stage of the Infection Mode android game.
On this level a User should save the place until the helicopter comes.
You can see two sliders at the block. This one is marker of the available block health. When a zombie hits the block - health is subtracted.
When a block is break, zombies can move through this one and attack the player.
If a lot of zombies attack the block, a User can throw the grenade, but, grenades can set a huge damage for the block, so, need be careful with this.
Thanks everyone for your watching!