Board Thread:Plants vs. Zombies 2/@comment-27030611-20151002183350/@comment-26554110-20151003002414

Endless Zone toughness scale:  (with troublemaking zombies included)

Greatest Hits (Hair Metals)

Tiki Torcher (Octos)

Big Bad Butte (Chickens!)

Arthur's Challenge (Jesters and Wizards)

Terror From Tommorow (Garg Primes)

Dead Man's Booty (Pirate Captains and Barrel Rollers, also Imp Cannons)

Others are easier.