The Deep Sea

The Deep Sea (sometimes just Deep Sea) is the fifth world in Plants vs. Zombies: The Wacky House. It introduces 7 new plants and 8 new zombies.

Story
The water from the melting snow gave Zomboss an idea - a good ol' dip in the saltiness of the sea.

Water
As the name obviously states, this world is in the water. Heliumthus or Weather Vine is required to keep plants alive. Without Heliumthus, plants are slowed x2 and they die after 10 seconds. Heliumthus prevents major usage of defense plants, as they are eaten after Heliumthus. 4 full rows of Heliumthuses are planted in Missions 1-3, and 2 rows for the rest of the world.

Tall Plants
To plant tall plants such as Tall-nut, a Tall Heliumthus is required. To create one, the player has to plant a Heliumthus on a Heliutmhus.

Long Plants
To plant long plants such as Super Chomp, a Long Heliumthus is required. To create one, the player has to plant a Heliumthus next to a Heliumthus, and then drag one to the other with the mouse/finger.

Sun
Sun is not present from the sky, as this world is underwater. Sun from sun-producing plants extinguish after 10 seconds.

Sun
Each level starts with 150 sun.

Returning

 * Popcorn
 * Gatling Pea
 * Ice Queen Pea

New

 * Weather Vine
 * Heliumthus
 * Corpse Flower
 * Lilattack

Returning

 * Octo Zombie

From Other Worlds

 * Snorkel Zombie (now serves as a basic zombie)

New Zombies

 * Conehead Snorkel Zombie
 * Buckethead Snorkel Zombie
 * Flag Snorkel Zombie
 * Deep Sea Diver
 * Fishkeeper Zombie
 * Zombie Piranha

Last Line of Defense

 * Lawn Mower, or more specifically, a red octopus.