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This article is about the character. You may be looking for the episode.
You'll never get rid of me! I'm part of you now! You can treat the symptoms, but you'll never cure the virus!
―Monster Arm's last words[src]

Monster Arm is an accidental replacement right arm for Marco that Star created with her wand in the episode of the same name.

Personality

It has a mind of its own and desires to eat the bowels of humans. Once finding out about its intentions and its bad influence on him, Marco gets Star to fix it and return his arm to normal. Monster Arm, before it's completely gone, threatens that it isn't permanently removed and it will remain a part of Marco.

Before it revealed itself as sentient, the Monster Arm would spill Marco's food, slap him in the face, and mess with his shower water, apparently for no reason.

Appearance

Monster Arm is a large tentacle creature with a light magenta underside and light pink suction cups. Most of the arm is deep blue and fades to purple at the tip of the tentacle. Its teeth are dull yellow and sharp and it is covered in pink slime.

Abilities

It is strong enough to allow Marco to do 675 one-arm (one-tentacle) handstand push-ups with it.

Sightings

Season 1

Season 3

Gallery

S1E5 Marco calls to Star for help
Click here to view the gallery.

Trivia

  • Monster Arm appears in the crowd surrounding Star and Marco in the season 1 opening theme song.
  • Monster Arm appears in "Storm the Castle" in a brief flashback Marco has when Star tells him to put his arm inside a strange creature.
  • Tom recalls Monster Arm in "Divide", despite him having no involvement with it.
ved Star vs. the Forces of Evil Characters
Main characters
Star ButterflyMarco DiazLudo
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Diaz family:
Angie DiazLinda DiazRafael Diaz

Echo Creek Academy:
Alfonzo DolittleAndreaAwesome OpossumsBeckyBlake LemonsBrittney WongChantalChelsea McNelseyEdFerguson O'durgusonFrancis SmithingtonHope HadleyIngrid BloomgrenJackie Lynn ThomasJanna OrdoniaJustin ArmbergLars VanderdudLeahMegan GandlymMiss SkullnickMoobs SquitsonOskar GreasonPrincipal SkeevesRaya RouseySabrina BackintoshStarFan13TimmyZeke


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BrianMr. CandleTom Lucitor


Forest of Unlikely Spider Bites:
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Ludo's army:
Bald eagleBeard DeerBearicornBig ChickenBoo FlyBuff FrogEmmittGiant spiderLobster ClawsMan ArmSpikeballsThree-eyed Potato BabyToffeeUnnamed bat monsterUnnamed crocodile monsterUnnamed flower monsterUnnamed frill-neck monsterUnnamed giraffe monsterUnnamed goat monsterUnnamed lizard monsterUnnamed mushroom monsterUnnamed two-headed monsterUnnamed warthog monster


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Pixtopia:
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