Editing Undodog

|species=Dog

}}

'''Undodog''' (also formatted as '''Undo Dog''') is a supporting character who debuts in ''[[Mario Paint]]''. He is a big-headed tan colored dog with pointed ears and a collar-like square box around his neck. The box was originally black but was changed white from ''[[Super Mario Maker]]'' onward to resemble an {{wp|Elizabethan collar}}. His name is a pun on the word "underdog", and a portmanteau of the words "undo" and "dog", since his main role is undoing actions done by the player.<ref>{{cite|quote=Undodog will help you correct a minor mistake by canceling your last action. You will quickly find that this hound is a great friend.|title=''Mario Paint'' instruction booklet|page=6|date=1992|publisher=Nintendo of America|language=en}}</ref>

Undodog is selectable as an icon in the bottom toolbox in the Art and Music modes of ''Mario Paint''. He dances and jump around at the bottom of the screen when the player is idle in the stamp editor or drawing board color selection. Undodog quickly returns to his original location if the player moves the mouse. If the player turns off the music and leaves it silent, Undodog will sometimes sneeze loudly, due to having allergies.<ref>{{cite|quote=When you click on the icon shaped like a treble clef, you can access a control panel that will let you change the background music. In this section, you can choose one of three different tunes. The fourth lever lets you work inside a quiet working environment. Don't be surprised, however, if Undodog's allergies cause him to sneeze occasionally.|title=''Mario Paint'' instruction booklet|page=19}}</ref>

Undodog reappears in ''[[Super Mario Maker]]'' and [[Super Mario Maker for Nintendo 3DS|its port]], namely as an icon that the player can select to undo a function, like before. Besides this, Undodog makes various other appearances: alongside [[Mary O.]] and [[Yamamura]]; riding a [[Reset Rocket]] in the background of Course World; when the player completes the 10-Mario or 100-Mario Challenge; and in the corner during [[Gnat Attack]], barking and jumping excitedly when only ten seconds remain. Shaking the heart SFX turns the icon into Undodog wearing a surgical face mask, creating a brief static with a buzzing sound followed by the course's music turned off temporarily or permanent instead if it is equipped to Mario, a throwback to ''Mario Paint'' where the bottom lever in the background music option has a similar appearance and effect when selected. The Undodog [[Costume Mario#List of costumes|costume]] can be unlocked by completing the [[List of official Super Mario Maker courses|event course]] "[[Walkin' with Undodog]]."

Undodog reappears in ''[[Super Mario Maker 2]]''. Undodog is the catalyst for the story mode's events, when he presses the [[Reset Rocket]] button on the ground accidentally, completely erasing [[Peach's Castle]]. He is still a supporting character, giving [[Mario]] access to various jobs to help rebuild the castle. Ironically, Undodog talks to Mario as if he were a pet, also referring to him as a "good boy," whilst Mario uses a canine onomatopoeia like "woof" and "bark". There is a scene in the ending where Undodog goes over to the Reset Rocket, looking at it happily while everyone gasps off-screen, but Undodog does not activate it. Most themes feature Undodog riding the Reset Rocket in the background of nighttime levels.<ref>{{cite|author=Nintendo|date=June 12, 2019|url=youtu.be/krW5kUKxI_8|title=Super Mario Maker 2 Gameplay Pt. 3 - Nintendo Treehouse: Live &#x7c; E3 2019|publisher=YouTube|accessdate=June 13, 2019}}{{timestamp needed}}</ref>

In the post-game, Undodog can be paid 100 coins to tell one of ten jokes, causing the music to fade out and the "Guffaw" sound effect to play. Most jokes reference several in-game Course Maker elements, which are emphasized in blue, and once Undodog has no more jokes left, the player can hear a random one again for free.

Undodog cameos in the [[Mario Paint (WarioWare: Touched!)|Mario Paint]] [[microgame]] of ''[[WarioWare: Touched!]]'' and in the [[Mario Paint (WarioWare: D.I.Y.)|Mario Paint]] microgame of ''[[WarioWare: D.I.Y.]]'', the latter depicting his icon.

|type=e-manual

|Eng=Each time you tap this icon, your last action will be undone through the power of Undodog.}}

|Jpn=イヌ

|JpnC=<ref>{{cite|title=マリオペイント (''Mario Peinto'') instruction booklet|page=13|publisher=Nintendo|language=ja|date=1992}}</ref>

|JpnN=''Mario Paint''

|JpnR=Inu

|JpnM=Dog

|Jpn2=1つもどる

|Jpn2N=''Mario Paint''

|Jpn2R=Hitotsu modoru

|Jpn2M=Back one

|Jpn3=アンドゥ犬

|Jpn3N=''Super Mario Maker''

|Jpn3R=Andu Inu

|Jpn3M=Undo Dog

|Rus=Пёс

|RusN=''Super Mario Maker'' and ''Super Mario Maker 2''

|RusR=Pyos

==Notes==