Basically, you click the pizza to get pizza points. Then you click the SHOP button to buy toppings to put on your pizza. Click space to go back. When you decorate the pizza, click on the topping and wait until you see the clone pop up, then put it on the pizza. If you find a "bad button", then just use the broom to smack him a little. It unfortunately does not work on "good buttons". There is a small scratch bug in the game when if you click the buttons sometimes the toppings do not come. But I fixed a bug I could fix
Go play Plants vs Zombies. It isn't as so called "old" as you think. Advertising is allowed.