[[folder: Fridge Brilliance ]]

* During the credits, and when a zombie breaches your defenses in your backyard, you can see a tricycle in the corner. Think about it: what kind of adult would just have a pink tricycle lying around in their backyard? This means that the person planting the plants (I.E: YOU) has a very young son or daughter in the house with them, explaining the reason you didn't just run from the house at first sight: [[VideogameCaringPotential you're trying to protect your child, and possibly your entire family, from the hordes of the undead, and it would be too dangerous to attempt an escape plan.]]
** Although the way the game acts about it, it seems Zombies are a common nuisance and commonly dealt with by a company that apparently monopolizes the anti-zombie plant market, escaping would just be impractical. Besides, [[CompletelyMissingThePoint I would have a pink tricycle...]]
** Maybe it's because the homeowner is a collector of wheeled man-powered transportation?
* Think about the concept of the game: You're fighting zombies, living corpses, with plants and fungi -- like decomposition! The zombies are a perversion of the natural order, and by creating the plant towers to destroy them, the player brings said natural order back.
* Why do you think the Kernel-Pult can lob butter? Vegetable fat. Nuth said...
* Why replace the MichaelJackson zombie with a [[DiscoDan disco zombie]]? [[StealthPun Disco is dead.]] Same reason we have a DeaderThanDisco trope.
** Doesn't work so well nowadays, because [[FunnyAneurysmMoment so is Michael Jackson]].
** It was probably a reference to ''Thriller'', Michael Jackson's best-selling album (and best-selling album of all time). But then he died, which made the reference a FunnyAneurysmMoment..
* Crazy Dave isn't wearing a pot on his head because he's crazy; he's protecting his sweet, delicious brain from being eaten by zombies. This may be cause for an OhCrap moment later -- right before the FinalBoss, a bungie zombie grabs Crazy Dave, and the pot falls off.
* Disco in [=PvZ=] seems to be a PopularityPolynomial, considering that it's become popular again in the future as seen by the Disco-Tron 3000.
* Just came to realise this: zombies lose their left arm (or right on certain occasions…) when they take enough damage. The left arm usually hurts first whenever a person starts to have a heart-attack. Coincidence?
* The Jester Zombie can [[AttackReflector reflect almost all projectiles]]... except the Magnifying Grass' sunray shots. It's pretty impossible to CatchAndReturn a projectile that isn't physical. Despite this, it ''can'' reflect Citron's plasma balls but not the Plant Food powered version.


[[folder: Fridge Horror ]]

* Partially a byproduct of re-used sound effects, a plant-munching sound can be heard when the zombies finally reach your house. However, this doubles as the sound of ''your skull'' getting munched by the zombies. [[spoiler:You hear the BigNo AFTER that sound.]]
** As mentioned above, it is possible there is a young child in the house. What if the [[spoiler:BigNo is you seeing the zombie eat your child?]]
* If you scroll down on the Achievements screen, you'll find a lot of {{ShoutOut}}s to other PopCap titles buried in the dirt ... but go far enough, and you'll [[DiggingToChina find China]], also overrun by zombies. The game's bright colors and tongue-in-cheek style work to hide the fact that ''the entire Earth has succumbed to the ZombieApocalypse''. That's right, the world has ended and you didn't even stop to think about it.
** Actually, no, this is 2070 (maybe.)
* When the zombies drop seeds, you don't even think about it. You just figure that they picked it up somewhere. But once you remember zombies recruit, that's when you realize, SOMEBODY HAS DONE THIS BEFORE. Lots of people have! The zombies carrying seeds were once fellow gardeners, whose brains have been eaten. You are just retrying what hundreds have done before you... and they all failed.
** I thought they just attacked the Plant where the seeds come from. Which might be worse.
** They drop seeds because Zomboss wants to annoy the player, so he takes the seeds and gives them to zombies.
** Incidentally, it would also explain how there are zombies with plants for heads.
* There's a tricycle parked in the backyard (one of the zombies sings about it in the end). [[InfantImmortality Does that mean there's a little kid around somewhere?]] [[AdultFear One who belongs]] [[NightmareFuel to your family?]]
** On another note, the zombies could have been alive for a while. And during that time, everyone could have been turned into a zombie. EVERYONE BUT THE PLAYER! [[NightmareFuelStationAttendant But hey, I'm not ruining your fun.]]
* Anyone pay attention to Dave's dialogue in PvZ2 when [[spoiler:Zomboss activates his hypnosis at the end of Far Future]]? Because it sounds eerily similar to [[spoiler:the dialogue at the end of the tutorial...]]

!!Fridge Logic
** How on Earth can said [[spoiler:massive zombie robot constantly slam Winnebagos down on the roof without it collapsing?]]
*** How on earth can plants resist a zombie invasion? Rule of cool.
** Tingle's Law; Anything the developers do not want to break will not break, no matter how many times you hit it with your sword.
* When a headwear zombie steps on Spikeweeds/Spikerocks, their headwear takes damage instead of the zombie itself. Despite their ''[[AgonyOfDeFeet feet]]'' being stabbed by the spikes. So next time you have to tread barefoot on gravel, nails, burning coal, or broken glass, wear a helmet on your head?
** This one gets even more puzzling when you consider that zombies that carry shields in front of them (the screen-door zombie, the ladder zombie, and the newspaper zombie) take the damage instead of their shields taking damage when they walk over spikeweeds and spikerocks (they also take damage directly from any variety of catapult). How does headgear block damage from all directions when shields only block frontal damage?
** To kill a zombie, the head must be destroyed or cut off; that is why the headgear takes the damage.
* How on earth did [[MightyGlacier Gargantuar]] climb on the roof in the first place?
** Uh, there was a ladder… Either that, or [[spoiler: Edgar]] drops them off…
* How did any zombies get on the roof? They've already been repelled from both yards.
** They could have climbed up the side - [[http://img.stpcdn.net/screenshots/plants_vs_zombies_hd_3.jpg looking at this]], it seems like the camera is situated in front of the house, the zombies are coming from the right side, and the chimney and defenses are on the left side. You've repelled them from the front and back, but not from the side.
* How does a mighty Gargantuar get into your front door... or climb over your backyard fence... ...or go down your chimney......
* How can you actually water a plant that's on fire?
** Lampshaded in the sequel's Zen Garden. When you water the Torchwood, it's fire disappears, it looks sad, then relights it. Although it would be easier to water it by the roots, as it's a tree…
* It doesn't make sense that a zombie can pogo stick on ''spikes''.
* Why on earth are there modern explorer zombies in Ancient Egypt? Or [[spoiler: robot bulls]] in the Wild West?
** Three words: [[spoiler: Dr Edgar Zomboss]]. Think about it. He might also be the reason as to why there are zombies everywhere in time...