Ice Level: An empty level created as an April Fools joke intended to have 4 frozen zombies and no plants, but had most of it's data removed and uses the day theme as a placeholder.[1]
High Gravity: On this Roof level, very high gravity causes projectiles to only hit the tile in front of it. Balloon Zombie's balloon pops after going a few tiles. Catapult plants hit at a slightly farther range.
Grave Danger: Zombies only surface from graves during this mini-game, and more graves appear frequently.
Can You Dig It?: The lawn is full of Wall-nuts and the only plant the player can plant are Peashooters. The Wall-nuts need to be dug up in order to plant the Peashooters.
Intro: The beginning sequence of the game, then puts the player into Adventure Mode instantly.
Survival: Day through Roof Endless (Except Pool): The same as Survival: Endless, but inside the Day, Night, Fog, and Roof areas, respectively. There is no pool variant due to Survival: Endless already taking place in the pool.
Upsell: Crazy Dave convinces the player to upgrade to the full version of Plants vs. Zombies. This is a leftover from the trial version.
Squirrel: The player is to find seven squirrels by digging up Wall-nuts, one of which has a zombie in it. The minigame is covered up by Intro, so it's inaccessible without further hacking.
Trivia[]
Since the other game modes are shown on it and when another tab is clicked on it shows the three other pages, the Limbo Page may be a preliminary setup for the title page. However, the one that is known is now used.
Squirrel is the only unused mini-game that cannot be played normally on the Limbo Page.
The player must unlock mini-games on Level 3-2 before they can use the Limbo Page. If they have not reached that point in Adventure Mode, then the Limbo Page is inaccessible. This can be used to unlock Survival Mode and Puzzle Mode prematurely.
There is a button titled after the Zen Garden, however, clicking causes the game to crash.
There is also a button for the Tree of Wisdom, but that too results in the game crashing.
References[]
โIt was 100% just an April Fools' joke for the other folks at PopCap while PvZ was in development. We got a bunch of people real good! - George Fan May 5, 2019. Twitter