Frostbite Caves - Day 8 was the eighth level of Frostbite Caves in the Chinese version of Plants vs. Zombies 2. It was a Plant Maze level. The main objective of this level was to match at least three orbs of the same color to make the plants on the left side of the lawn damage the zombies on the right side. The player also needed to protect the Tall-nuts on the right side of the lawn from being eaten. When this level was finished for the first time, the player unlocked the Plant Maze Brain Buster set of levels.
This level is quite easy, considering that it is the tutorial level for Plant Maze.
Also, Tall-nuts are defensive plants that need a lot of bites in order to be eaten.