Plants vs. Zombies: Outer Space

Plants vs. Zombies: Outer Space is a fanmade Plants vs. Zombies game, created by HfEvra. This game takes place on different planets (as the name suggests), along with some other locations such as the Moon.

Summary
After supposed "aliens" were discovered, Crazy Dave and Penny go to investigate. Turns out that the aliens were no other than the zombies themselves! To prevent these monsters from reaching Earth, you have to travel to different planets and stop them. Will they make it to Earth? Let's hope not!

Order of Events
More info coming soon...

Plants
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Earth
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 * Basic Zombie
 * Basic Conehead
 * Basic Buckethead
 * Imp
 * Gargantuar
 * Giga-gargantuar
 * Football Zombie
 * Giga-football Zombie

Differences from PvZ1

 * Unlike PvZ1, you don't have to unlock the worlds in order.
 * Unlike PvZ1, mushrooms do not sleep during the day.
 * Instead, most plants sleep on the other planets.

Differences from PvZ2

 * Unlike PvZ2, there are some plants that sleep.
 * However, in the Chinese version of PvZ2, there is a zombie that makes plants sleep.
 * Unlike PvZ2, you don't use World Keys to unlock other worlds. There is a different method.