Survival: Night (Endless)

Survival: Night (Endless) is a hidden level that is in the Limbo Page. This can be accessed either using Cheat Engine to unlock the Limbo Page, changing the game mode of Survival: Night using Cheat Engine, or renaming saved files in userdata. It can also be played in the the online version, replacing the Gargantuar with the Giga-Football Zombie and having all zombies up to the Screen Door Zombie.

How to access it
There was a page of mini-games which were cancelled before the release of the game, called the Limbo Page. The creator did not publish a visible link to this page.

Gain Access to Limbo Page
Add three addresses and change all the value to 144.

see video tutorial.

Renaming Saved File
This can be played by renaming saved file in userdata. No need to use Cheat Engine.

1. Pick your plants in Survival: Night (Hard) then leave the game.

2. Go to the userdata folder and rename game#_7 to game#_13 (# is the user number so look for game1_7 if user 1)

3. Go to Survival: Endless and play it.

Zombies

 * Zombie
 * Flag Zombie
 * Conehead Zombie
 * Pole Vaulting Zombie
 * Buckethead Zombie


 * Newspaper Zombie
 * Screen Door Zombie
 * Football Zombie
 * Dancing Zombie
 * Backup Dancer


 * Jack-in-the-Box Zombie
 * Balloon Zombie
 * Digger Zombie
 * Pogo Zombie
 * Bungee Zombie


 * Ladder Zombie
 * Catapult Zombie
 * Gargantuar
 * Imp
 * Giga-gargantuar

Web Version
In Plants vs. Zombies Web Version, there is a  Survival: Night (Endless) level. It is known as Survival Mode or Survival: Online (Endless).

Zombies:

 * Zombie


 * Flag Zombie


 * Conehead Zombie


 * Pole Vaulting Zombie


 * Buckethead Zombie


 * Newspaper Zombie


 * Screen Door Zombie

Besides having limited plants and the player only can choose four plants each time, the gameplay is very similar.
 * Giga-Football Zombie

Trivia

 * This may be the most difficult Survival: Endless game because it takes place at night so no sun falls from the sky. And also, there is no pool which is a safe place for Cob Cannons and Cattails.