Brimstone Tundra

Brimstone Tundra is a world in TBA. The lawn is seen as a sheet of ice, under this sheet of ice is hot lava that will sometimes emerge naturally in the 4 rightmost columns, this heals fire zombies but slows them, it deals damage to ice zombies but makes them faster, and planting there is impossible. However tiles will get a bit more "reddish" before turning into lava tiles and heal up after 40 seconds, many of the fire zombies will produce lava tiles when dying. This world was hinted in Pinata Parties. Like in Frostbite Caves of PVZ2, icy winds will blow freezing plants, and frozen plants/zombies can be found at the beginning of the level, however these winds and finding frozen plants/zombies is less common than PVZ2

Both types of zombies (ice and fire) can be a threat early in the level, as fire zombies can make fire spaces where you can't plant, and ice zombies are slightly stronger than your average zombies, and can freeze nearby plants if they've been in a 3x3 area of one for about a minute. So wall nuts are of less importance.

Ice Zombies
TBA

Fire Zombies
TBA

Notice
Please note this world is not yet complete, do not delete it for being a stub or for any similar reason