Survival: Fog (Hard)

Survival: Fog (Hard) is the ninth level of Survival Mode.

Zombies

 * Zombie
 * Flag Zombie
 * Conehead Zombie
 * Pole Vaulting Zombie
 * Buckethead Zombie
 * Newspaper Zombie
 * Screen Door Zombie
 * Football Zombie
 * Dancing Zombie
 * Backup Dancer
 * Ducky Tube Zombie
 * Snorkel Zombie
 * Zomboni
 * Dolphin Rider Zombie
 * Jack-in-the-Box Zombie
 * Balloon Zombie
 * Digger Zombie
 * Pogo Zombie
 * Ladder Zombie
 * Catapult Zombie
 * Gargantuar
 * Imp
 * Trash Can Zombie (Nintendo DS, Xbox Live Arcade and PlayStation 3 versions only)

Strategy
For the first two flags, the seven good plants to choose are Sun-shroom, Puff-shroom, Sea-shroom,Plantern, Wall-nut, Lily Pad, Split Pea, and Torchwood. The other plants are up to you. Place the Sun-shrooms on the second column (excluding water rows) followed by the third column. Then place your Puff-shrooms right behind the fog line (where the fog starts). When you can plant your Sea-shroom, plant it on the same lane. When you want to plant the Plantern, have at least 75 sun so you can plant a Plantern and a Wall-nut or Garlic right after that. The Plantern should be on the seventh column, for the Wall-nut or Garlic, eighth column. Plant Puff-shrooms and Sea-shrooms on the sixth column. Keep collecting sun until you get about 150 sun, then start planting Split Peas on the fourth column. The fifth column will have Torchwoods. Place Lily Pads on the first, second, and third column. On the water lanes, place a Split Pea on the first Lily Pad, Torchwood on second Lily Pad, and Wall-nut on third Lily Pad.