In Mecha VS Zombies 2048, you can control your Mecha moving and shooting in a octagon arena. There will be endless zombies climbing from underground and trying to dismantle you. Defend yourself with your two machine-guns and your heavy metal feet.
One click on ground turns the Cockpit and guns.
Double click on ground turns the Mecha to the new facing direction.
Shoot the hen and eat the shield, it will keep invincible for a short time.