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Paper Mario enemy
Battle idle animation of Monstar from Paper Mario
Location(s) Shiver Snowfield
Max HP 20
Attack 1
Defense 0
Moves Magic Storm (1)
Role Boss
Type Flying
Items N/A
Coins N/A
Level 45
Run N/A
Strong Star
Weak None
Sleep? 0%, 0
Dizzy? 0%, 0
Shock? 0%, 0
Shrink? 0%, 0
Stop? 0%, 0
Fright? 0%
Air Lift? 0%
Hurricane? 0%

This monster... Even I don't know what it is! I don't know why, but it looks really terrifying. ...I get the funny feeling I had a nightmare about it... Max HP: 20, Defense Power: 0 I don't know its attack power, but it must be very powerful, judging by its looks.

“Whaaaaat do you think? Scaaaary monster, aren't I? Youuu know you want to run...”
Monstar, Paper Mario

Monstar is a ghost-like monster from Paper Mario. This creature appears and ambushes Mario and his partners as they approach the outskirts of Starborn Valley, where it warns them to "turn away" and "go no further," lest they be "eaten." The player will then be presented with the choice to either flee the area or fight; choosing the latter option will initiate the battle.

Despite an intimidating appearance, an attack consisting of a flurry of shooting stars, and Goombario's Tattle assuming that "it must be very powerful," Monstar has only 20 HP and an attack power of 1. Upon its defeat, the creature is revealed to be nothing more than a handful of Star Kids trying to protect the valley, who attempt to give one last warning before retreating.

Monstar from the Super Mario-kun manga.
This is the translation of the text from right to left: "I won't let you pass by here!" "Aah!" "It's a monster!"

During battle, Monstar is immune to the powers granted by the Star Spirits as well as the Shooting Star item, as it is itself a creature made from stars.

Monstar also appears in the 27th issue of Super Mario-kun. It terrifies and attacks Mario, Goombario, and Kooper, but when Mario defeats it, many Star Kids reveal themselves and escape, surprising Mario and his group.

Names in other languages[edit]

Language Name Meaning
Japanese かいぶつ

Chinese 大妖怪
Dà Yāoguai
Big Monster

French Monstrass
German Monstar


Monstar's star pattern in the Wii and Wii U releases of the game.
  • In the original Nintendo 64 version of the game, Monstar has a moving iridescent star pattern over it. However, most emulators, including the official Virtual Console version on the Wii and Wii U, incorrectly render this as a cloud of star-like particles surrounding it. The Nintendo Switch Online version partially corrects this by having the star pattern extend to the outline of Monstar's sprite.