The Skyscraper is a 10-story where you work, and has been invaded by zombies. The Zombies eat your brains when they get to your cubicle.
Sun: Increments of 15 that go through the windows.
Special: Plants need to be planted in Flower Pots. Every level's background is different since every level is in a different floor.
Zombies: Every Zombie except Aquatic, Vehicle, Sporty, Bungee, Balloon, Digger Zombies, Dr. Zomboss and Gargantuar. The Imp can appear on its own.
Last line of defense: Rotating chairs with wheels that put zombies on the chair and pushes the zombies outside the window.