Five zombies first appear in the Roof section.
| Zombie | Description | Health |
| Bungee Zombie | Steals plants and drops zombies. Cannot penetrate umbrella plants. | 23 |
| Ladder Zombie | Metal ladder acts as shield and allows other zombies to climb over plants. | 17+25 |
| Catapult Zombie | Attacks plants with basketballs and runs them over when it runs out of ammunition. | 34 |
| Gargantuar | Instantly killed by lawn mowers, pool cleaners and roof cleaners. Throws imps. Very high health. The Giga-Gargantuar has double health. | 150 (300 for Giga) |
| Imp | Thrown over plants by Gargantuar | 10 |
