It appears the scene takes place at the Player's House which is a cave that's been outfitted to serve as a home. On the zombie side of the lawn there is a giant cave shaped like a zombie head made of ice, and there are also two mammoth tusks with one of them being broken.
The main elements of this world are slider tiles, chilling winds and the surprise attack "Snowstorm!". Slider tiles are ice blocks that float on tiles with water and have a zombie hand frozen inside with its index finger pointing either up or down. If a zombie walks onto a slider tile, it will move into an adjacent lane either above or below depending on whether the finger is pointing up or down. Chilling winds appear randomly during the level, partially freezing plants and they can eventually leave the plant completely encased in a frozen block, which renders the plant useless and also behaves similar to a tombstone. Finally, "Snowstorm!" is a surprise attack which is similar to the "Sandstorm!" surprise attack in Ancient Egypt. Zombies will come directly onto a tile, even behind a slider tile, then continue moving. Zombies that come in by the snowstorms are not affected by the slider tiles.
Besides the things mentioned above, there will sometimes be available plants, zombies or both that are frozen in the lawn from the beginning in some levels. The player can release them by using thawing plants, such as Hot Potato.
This is the prehistoric Ice Age. Hidden beneath the freezing wind there are uncountably many crises. You gotta be careful for the swarm of prehistoric zombies!
In Chinese: 这是史前的冰河时代，寒风中隐藏着无数危机。史前僵尸们蜂拥而至，你需要万分小心！
Special Delivery is a Brain Buster that is a conveyor-belt level with the plants given via said conveyor-belt. Being a conveyor-belt level, no sun and sun-producing plants will be given. Starting from Big Wave Beach, most of its levels are featuring new plants.
For all the non-Chinese trivia about Frostbite Caves, see the international version of Frostbite Caves.
Before the 1.8 update, it was the only world with just three plants that can be unlocked with stars in Plant Exchange.
Before the 1.8 update, Frostbite Caves was the second world to give a free level 3 plant to the player (in this case, Fire Peashooter). The first was Big Wave Beach.
Unlike in the international version, the zombies frozen in ice blocks must be defeated to complete the level.
If the player turns off the music, the music will still play in this world.
All of the Chinese exclusive plants from this world were meant to be added in Plants vs. Zombies: Endless Edition, but was scrapped for unknown reasons.
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