Survival: Roof

Survival: Roof is the fifth level of Survival Mode and the last of the easy survival levels. In the PC version, it is unlocked after completing two other survival levels; the iPad version only has regular survival levels, so four levels must be completed before it is unlocked.

Zombies

 * Zombie
 * Flag Zombie
 * Conehead Zombie
 * Pole Vaulting Zombie
 * Buckethead Zombie
 * Newspaper Zombie
 * Screen Door Zombie
 * Football Zombie
 * Zomboni
 * Jack-in-the-Box Zombie
 * Balloon Zombie
 * Pogo Zombie
 * Ladder Zombie
 * Catapult Zombie

Strategy
Play it like a normal Roof level, using the pults. Upgrade your Cabbage-pults to Melon-pults and Melon-pults to Winter Melons when you have enough sun. It is nearly necessary to use Sunflower and Flower Pot, and as the game progresses further, you can get Twin Sunflowers.

If you want, you can also look at Survival: Roof (Hard)/Strategies for some good strategies.