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Dr. Mario World

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Title Screen

Dr. Mario World

Developers: Nintendo EPD, LINE, NHN Entertainment
Publisher: Nintendo
Platforms: iOS, Android
Released internationally: July 9, 2019

DevTextIcon.png This game has hidden development-related text.
GraphicsIcon.png This game has unused graphics.
TextIcon.png This game has unused text.
Carts.png This game has revisional differences.

See, this is why game preservation is important.
This game is defunct.
Do note the game no longer works at all without modifications. This is most likely due to the game's servers being shut down. As a result, further official developments with the game are unlikely to happen.
To do:
  • english(dev), jpja(rough), krko(dev) text directories, dump the text using uTinyRipper or that premium tool or demo of it to find the true directories.
  • There are more unused graphics found in the game.
  • A lot more revision differences

Mario thinks he isn't getting enough profit for working as a doctor, so he decides to add microtransactions to his latest game in an attempt to become rich. Also Dr. Baby Wario is playable here.

The game ended its services on November 1st, 2021, after two years of being alive, with the game being delisted on stores at the start of 2022.

Debugging Function Leftovers

Mentions for a score viewer, saving a log, debug info toggler, debug server signature, gaining AP/SP, server management selection, game/management server selection, game/managment server IP, start game on click, delete game preferences, retry authentication + w/ Nintendo Account and FPS display visibility exist in the game's files and the game assemblies.

Internal Project Name

The game's internal name is "Matcha", according to an accidentally posted Google Play update description for Version 0.1.10, called Alpha 0.1.10-real-matcha-190703 and with matcha as the content. The name also appears in the msbp file's name, Matcha.msbp in the folder messagestudio.

(update description: 1, 2, 3)

Unused Text

Present in Login.bytes, oddly outside the text directory.

Name Japanese Translation
Please configure a nickname. 

Comparisons with Developer Text

Text in the directory messagestudio\xx\x(dev).


Name US English English(dev) Note
Your network connection appears
to be unstable. Retry?
The connection was lost
Please try again
For whatever reason, commas and periods are missing.
Connection closed
Both very vague messages.
Event information not found. It is
possible the event has already
No event information found.
Way more descriptive than development text.
The reward you are attempting to
obtain is no longer available. You
cannot receive it.
Date information is not valid.
Can not receive compensation
Way more informative but lacks info on the problem
There is an error in the item data.
It is not possible to obtain this
Item information is in error.
Can not receive compensation
Odd spelling.
To play Dr. Mario World, you must
update the Google Play service.
You must update the Google Play service,
Dr.Mario World is running.
Odd text placement.
Your device cannot access
Dr. Mario World.
The changed OS (such as 'rooting') smartphone
does not have access to the service.
Way more detailed compared to current text.

Unused Graphics


In the files of the game, several unused graphics of enemies, which are presumably unused assistants, can be found.


Several unused graphics of medal unlocked via Clinic Events. One set has a Boo on it, while the other has the Super Mario Galaxy logo. No Clinic Events using these graphics were ever used in the game.

Medieval Icons

Oddly, a set of icons depicting medieval weaponry and accessories can be found with a wildly different art style can be found in the files of the game. These are likely left over from an unrelated game.

(Source: Mr. C, Spriter's Resource)

Version Differences

  • The August 7, 2019 update added Daisy, Wario, and Waluigi as recruitable doctors.