Moist Caves

Moist Caves is the eighth world in Plants vs. Zombies: The Wacky House. It introduces 2 new plants, 2 returning plants, 8 new zombies, and 1 returning zombie.

Story
Getting sick of the air (and secretly of failure), Zomboss remembered reading about a brand new city - and thinking of all possible things that could go wrong. However, along the way to the city, the house ran out of fuel, and fell into a hole, landing right in the middle of a cave.

Night
This world takes place in the night, meaning there is no sun from the sky.

River
Similarly to Pool, there are six lanes in this world - 4 land, and 2 water. Therefore, both Flower Pots and Lily Pads are needed in this stage.

Stalagmites & Stalactites
Another surprise attack, "Stalags!" starts appearing from Night 10 onward. When this occurs, stalagmites grow from the ground, into plants, stabbing and therefore destroying them. Stalactites also occur, and are similar to Bungee Zombies. Stalactites can be prevented with Umbrella Leaf.

Beghouled (Part 1)
Beghouled returns in this game, as a Brain Buster. Nothing big has changed, other than the player being able to choose the Power-ups they would like to use.

Sun
Each level starts with 100 sun.

Returning

 * Cattail
 * Guacodile

New

 * Crystalthemum
 * Solar Panel

Returning

 * Explorer Zombie

New

 * Miner Zombie
 * Miner Conehead
 * Miner Buckethead
 * Miner Flag Zombie
 * Diamond-Head Zombie
 * Crystal Launching Zombie
 * Miner Gargantuar
 * Miner Imp

Last Line of Defense
Lawn Mower, or more specifically, a large purple crystal.

Trivia

 * This is the first world in the game to be completely in the night.