- For the international version, see Lost City - Day 32.
Lost City - Ultimate Challenge is the 25th and last level of Lost City in the Chinese version of Plants vs. Zombies 2. Being a boss battle, the player is forced to defeat the Zombot Aerostatic Gondola to win the level. After completing this level, the player receives a money bag.
this level is considered hard for most people due to the fact the boss can kill plants very easily. the solving involves a glitch that allows infinity sun, which makes re-planting very easy.