Underground Tunnels

The Underground Tunnels is a world in PvZ2.

Appearance
It happens in a modern, blue underground tunnel. The mpwers are zappers and the "Player's House" is marked by an exit door.

Background
Oh no! Zomboss has turned the humans in the tunnels into zombies, and You into their mortal enemy! Use the new plants to protect your Head!

Gimmick
The main gimmick here is Benevolence. Once each wave, one zombie of each type flashes in a rainbow color. Once defeated, they will revert to human form and fight for you.

Brain Buster
The Brain Buster here is called Pop Up. Once in a while, a zombie will pop up from a random tile, destroying any non-flying/hovering plant on it.

Plants
Lilicopter

Rotosnapper

Calming Palm

Pinecone-pult

Sun-dew

Ice Rice

Blowing Palm

Wall-flower

Maulberry

Boomberry

Chive-lry