Arena

Battlez is a mode in Plants vs. Zombies 2 that was introduced in the 6.6.1 update. This mode can be unlocked after getting the Map of Space-time-ness from Ancient Egypt - Day 1, and requires to get at least more than 6 plants to unlock.

Zombies
Sloth Gargantuar

Jurassic Rockpuncher

Chicken Wrangler Zombie

Brickhead Zombie

Imp Cannon

Octo Zombie

Trivia

 * When tapping on the Battlez icon, the Dark Ages Zomboss intro plays, along with the boss music.
 * You get 5 Crowns for winning and 1 Crown for losing.
 * If you lose a streak, you can pay 10 Gems to retain it, with the cost increasing by 10 per loss.
 * The zombies in this mode will get progressively stronger as time goes on.
 * This is the only mode in the game where zombies can't eat your brains. This is because when a lawnmower is activated, it is automatically regenerated.