I've got some orders to relay to you reckless lot.
Your objective is to repel the zombies and survive.

Walk slowly and search for zombies, using your device's camera to display your surroundings on screen.
When a zombie appears, the battle begins.

Tap to fend off the zombie's attacks.
Solve the calculations displayed here to attack the zombie.
When you have a string of correct answers, the red meter will fill up, and your attack points will increase.

In Lesson, you start with easy questions that get harder as you level up.

In Arcade, you've got to fight as many enemies as possible within a time limit and rack up combos to raise your score.

Play a little bit and you'll improve your math skills as you enjoy the game.