Film Theory: You Are Breathing POISON! (Phineas and Ferb)
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It's been a while since we talked Phineas & Ferb, so I knew I needed to check in to see if there were any new theories being concocted in that backyard. It turns out, there totally IS! Today Theories, we are talking about the killer plant from SPAC! In the 'Phineas and Ferb the Movie: Candace Against the Universe' we come up against an alien species that needs something from earth. Theorists, that is just the set up to a KILLER theory!
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#PhineasAndFerb #Perry #Disney #DisneyXD #Phineas #Ferb #DisneyTheory #KillerPlants #Theory #FilmTheory #Matpat #Trailer
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Writers: Matthew Patrick and Justin Kuiper
Editors: Koen Verhagen and Josh Langman
Assistant Editor: AlyssaBeCrazy
Sound Editor: Yosi Berman

  • Bitter Bro the Unus
    Bitter Bro the Unus

    Please do a milo Murphy's law theory

  • abhimanyu nr
    abhimanyu nr

    FILM THEORY IDEA:pls do a THEORY on fanfictasia by artspear entertainment

  • Minerong YtSub
    Minerong YtSub

    When I was little I used to hate Phineas and Ferb cuz the Brothers doesn't get busted by their mom

  • Ambiance

    Oh my god the villain is literally queen wasp, *oh my god it’s happening*

  • Clever Username
    Clever Username

    Did anyone else know that this existed? Fanders: Yes.

  • Faaahad Alazmi
    Faaahad Alazmi


  • LaserChing

    I thought plants need oxygen at night

  • Mooh

    The Roblox cluster wow they play a lot of that game don’t they

  • Jason ROBLOX gamer
    Jason ROBLOX gamer


  • adrian ruiz
    adrian ruiz

    You should watch milo Murphy law cause I just feel like its completely filled with theories

  • zixuan

    actually technically oxygen is poison to anoxic creatures so yeah matpat ur right

  • Slyksterr Kevin Ferrer
    Slyksterr Kevin Ferrer

    Can we get a Chalkzone theory video pretty please🤔

  • Galileo Chiu
    Galileo Chiu

    When you said co2 was not that common on earth, I immediately thought nitrogen, and what do you know, I predicted it

  • Box Boxie
    Box Boxie

    We have chetos as industrial waste we absolutely love... Now we have oxygen as industrial waste, huh?

  • Rage 2000
    Rage 2000

    She is the chosen one because she brought the aliens to earth

  • Frank Anderson
    Frank Anderson

    Wait a minute if the people of feebloot (Idk how to spell that crap)just breath oxygen and exhale it back,makes sense since that means a fixed amount of oxygen exsists right?Well matpat said that mushrooms breath oxygen and exhale CARBON DIOXIDE and if there are no plants on feeblaoot then how does the planet replenish its oxygen,answer they don't.So how do they live on that planet?!?!?!?!?!

  • Tiffany Girouard
    Tiffany Girouard

    I love the game roblox

  • XWierdThingsHappenX

    The mushrooms of fleebleoot aren't actuall mushrooms. It's not earth so they aren't mushrooms. We can't compare earth and fleebleoot mushrooms. So as far as we know the don't work like our mushrooms.

  • Andrew the t-Rex boy B
    Andrew the t-Rex boy B

    Did you know that this just a kid moive and a kid show and a kid game

  • Zill Miracle
    Zill Miracle

    0:11 shhhhhhh I was not ready to be called out like that


    I mean if the planet has aliens that breathe and expel oxygen it can be the same with mushrooms

  • Gift Mugendi
    Gift Mugendi

    Didn't tell us why we were breathing poison

  • The Satanic Static
    The Satanic Static

    We want more of PaF theories

  • Gab Gabriel
    Gab Gabriel

    Yes, I know that high concentrations of Oxygen is, in fact, dangerous for your health. I read Jojo's. I have a Johnny profile for pete's sake

  • Sam G
    Sam G

    feebla oot

  • Denmark

    Matpat: ''Mushrooms aren't green'' Death cap: ''Am I a joke to you?''

  • Piechew Community
    Piechew Community

    what about their radar where they find carbon dioxide? is it just malfunctioning

  • The.promised.weirdo

    "Big mood Candas, big mood"

  • Khalid Bell
    Khalid Bell

    I just want to say thanks for putting Funguy from Chrono Cross into this video. That's my all-time favorite game.

  • Catalyst Girl
    Catalyst Girl

    “She can control people through a plant” Me: *Wings of Fire arc 3 flashbacks*

  • Benny Worm
    Benny Worm

    Me looking at the thumbnail: The result of pcs crossbreading

  • Frey V
    Frey V

    Omg me and my partner watched it like Two weeks ago!!!

  • anthony muffin
    anthony muffin


  • Some Guy
    Some Guy

    omg, I caught that Chrono Cross reference!!!

  • Meme C.I.E
    Meme C.I.E

    Feed me Seymour

  • Christine Sweet
    Christine Sweet


  • BroItsZion


  • Rick Sanchez
    Rick Sanchez

    If Aliens have different properties then can't Alien Mushrooms have different properties too?

  • Ace Dynamite
    Ace Dynamite

    You should make a channel called health theory and the logo should be a heart

  • Dawolfma Plays
    Dawolfma Plays

    How do you know those are mushrooms? What if Super Super Big Doctor mixed up the translations? "I THINK in your language it's called carbon dioxide."

  • jame2041 jame2041
    jame2041 jame2041

    0:33 / 11:39

  • Sprixxy’s WRLD Ψ
    Sprixxy’s WRLD Ψ

    I thought you were kidding about that the movie was a thing ):

  • AwesomeBoysJPTV

    Matpat: You're exhaling H20 when you breathe out ME: What????? Vomit?????

  • Joshua

    I watched this, don’t understand how it got 100% rotten tomatoes.

  • Christine Miller
    Christine Miller

    I love it i watched it when it frist came out

  • marco getchell
    marco getchell

    2:20 wacey twist!!!

  • aandes account
    aandes account

    “Did anyone else know this existed? Yeah me either” Me: I did I was waiting for it. Wait...MY life must be so boring to wait for that movie. :(

  • Psychotic Coconut
    Psychotic Coconut

    Raya and the last dragon. Is Kumandra based on Pangea? And if so please make it dark. I like having my childhood ruined.

  • Tasty Jason
    Tasty Jason

    'The roblox cluster'

  • That Guy3287
    That Guy3287

    Mind controlling spores? Wait, MIND CONTROLLING SPORES!? Do plants use spores??? What plant controls minds or muscle with spores!? I can't spell it so I'm calling it the zombie fungus. THE STUFF THAT YOU HAVE DISCUSSED IN PREVIOUS VIDEOS!!

  • Lunar Moon
    Lunar Moon

    Dr.doof always fails at all of his projects- just like everyone else he is literally sooo relatable- someone had to say it

  • Cyber Runner
    Cyber Runner

    Me and the other Fanders loving that Thomas Sanders is in this: :D


    Why the heck is DAD commenting on this fun little Phineas And Ferb video

  • Iris Gonzales
    Iris Gonzales

    this is how scrience classes must be taught 😅

  • Vince Aaron Vergara
    Vince Aaron Vergara


  • Icedragon

    Make a theray about slime ranchers I need my childhood killed

  • Icedragon


  • Viktoriya Mokhnatyuk
    Viktoriya Mokhnatyuk

    for early life on earth oxagen was a poisson

  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • Battle Chiky
    Battle Chiky


  • susan Solomon
    susan Solomon

    I watched a movie about if you go onto space what you’re talking about right now what are you talking your talking or you’re talking about I know what you’re talking about what are you talking about right now I know I watch it I watch it when I go to OMG

  • Mr Godzilla gojira 1954
    Mr Godzilla gojira 1954

    0:26 me when I’m sad

  • Kenia Monterroso
    Kenia Monterroso

    The sharp key rhetorically embarrass because salmon cytogenetically rescue save a homeless hyena. unarmed, tedious department

  • Some One
    Some One

    I just learned about the krebs cycle and the photosynthesis and cellular respiration

  • Corbin Sprague
    Corbin Sprague

    I love your content

  • STandMyDoggo

    Wow!! Theres 9,999 comments... well not anymore 😏 I have the 10,000th comment

  • Gregory 99
    Gregory 99

    Teacher: today we are going to talk about plants and what they want to live Me: expert

  • -.;RoDenT•_•qUeeN ;.-
    -.;RoDenT•_•qUeeN ;.-

    Big mood 😭✋

  • Teagan Buckson
    Teagan Buckson

    10,000 comment so I'm going to say FIRST

  • Just Me Content
    Just Me Content

    Did i understand any of these chemical names? No. Am i too lazy to search them up? Yes. Did i still like this video? Yes.

  • Birdie Shorts
    Birdie Shorts

    Make him get 100k likes!

  • Gabrielle Wilks
    Gabrielle Wilks

    I knew the movie existed I saw an ad.

  • Prerna Soopal
    Prerna Soopal

    mat pat can you do a theory about moanas grandpa

  • Somebody Someone
    Somebody Someone

    13 years is a pretty long summer.

  • Jake Manderson
    Jake Manderson

    Did I watch school in my weekend

  • Sol Venice Villegas
    Sol Venice Villegas

    10:42 Pause the video and click this what do you see?

  • Bob Travis
    Bob Travis

    Plants cant access this 78% of the atmosphere they need bacteria to do the heavy lifting

  • NoobearGaming

    me and my sister watched this after forgetting that phineas and ferb existed for a while (my favourite song is the dr doofenshmirtz adulting song)

  • Sush1boy

    Plants create FLUCTOSE not glucose!!!

  • The Weirdo 888
    The Weirdo 888

    what's hazbin hotel?

  • The Weirdo 888
    The Weirdo 888

    *one of the feeb-la-oot ships accidentally abducts a pile soil instead of a person* *The chosen one song plays*

  • 9A 11 Anantika Kumar
    9A 11 Anantika Kumar

    Great theory! I love it but I the message of the movie might be like the earth has excess carbon dioxide because of global warming or something.

  • Beautiful bunnies
    Beautiful bunnies

    Lol is it weird that I knew about the candace movie but I didn't know about soul until it was recommended to me on disney plus

  • Carmen Brown
    Carmen Brown

    0:26 is me every day

  • Lowie R
    Lowie R


    Did you not come up with anything for soul?

  • Angles

    Film theory is the result of when you finally figure out what to do with your over thinking.

  • Hwikek

    When you think your theory is so bad that you preempt the audience to curb their enthusiasm.

  • Toxicflower4

    Plants don’t have mind controlling spores but the “zombie fungi” or Ophiocordyceps unilateralis does. It mind controls or takes over the body’s of ants and other bugs. It’s kinda scary but you could look it up if you want. :)

  • Eileen Lenz
    Eileen Lenz

    I don't know if you will see my comment but I think i have a topic for you😅 in Phineas and Ferb Season 2 Episode 4 "Candace Holmes" Ferb is putting Butter on his body to go down the Waterslide faster. I think this would be a nice Theory 😊 Ps. I love your Theory Videos (on all channels!!!) ❤

  • summerstars07


  • Hank J. Wimbleton
    Hank J. Wimbleton

    me listening to this video: mhm mhm intresting what i gathered: mama doesn't need oxygen, she needs something else or whatever

  • Thepack777

    Good look ever explaining the crepps cycle matt

  • Álvaro C.
    Álvaro C.

    It's been a month and five days, MatPat. WE'RE DUE SOME MORE CHILDHOOD DEFENESTRATION, MATPAT.

  • pickle king
    pickle king

    I watched this the the MORNING it came out

  • mrjojokester

    My allergies have arrived... Go away allergies, my head hurts