Shell Zombie

Clamshell Zombie is a zombie in the Chinese version of Plants vs. Zombies 2: It's About Time. It can absorb as much damage as the Knight and Blockhead Zombies. Also, when plants are in front of it, the zombie snaps its clam shut to immediately kill them.

General
This is a very dangerous zombie, especially if many of this type in groups. Like the Mecha-Football Zombie, it has very high health and cannot eat plants. However, unlike the Mecha-Football Zombie, this zombie can only eat plants when its clam is destroyed. Destroy its clam quickly, as it can crush an unlimited number of plants. This could result in your lawn defense being destroyed and losing the level. If combined with Octo Zombies, Fisherman Zombies, Surfer Zombies, and the Low Tide ambush, they can cause massive mayhem.

Immediately use Plant Food on your Lord Bamboos to deal splash damage to destroy its clam quickly. Banana Launchers and Guacodiles are a very good idea and this is an alternate way to destroy its clam. Combining this with Lightning Reeds and Homing Thistles is a good idea. Temporarily stall it with Iceberg Lettuce and Kernel-pult to prevent it from crushing your plants with its clam shell. Tangle Kelp are also a good idea to deal massive damage. It is recommended you kill the zombie blocking the Clamshell Zombie's way and then plant the Tangle Kelp to deal damage.

Acid Lemon can also be of use here. If you use multiple level 3 Acid Lemons against a single Clamshell Zombie, the shell will quickly be corroded. Plant Food on the Acid Lemon will deal extensive damage to all zombies as a secondary option.

Trivia

 * This is the first zombie to wear a single blue flip flop.
 * This is the only zombie to be exclusive to the chinese version of the game.