Click the zombie to damage it, and click the sun to heal yourself for 50 H.P. See the cloud total go up as more people rid the zombies of their lawn! Press 1, 2, and 3 to switch between Peashooter, Repeater, and Snow Pea respectively. (Just cosmetic.)
Peashooter, Browncoat Zombie, Conehead Zombie, and Browncoat's mustache sprites taken from the Plants vs. Zombies Wikia. Backround taken from The Spriter's Resource. Musical tracks taken from Plants Vs. Zombies. PvZ is owned by PopCap and EA.
