JavaScript port of an Adobe Flash application that decodes Mario Kart: Double Dash!! Time Trials contest passwords.

1. Play Mario Kart: Double Dash!! and, after completing a race in Time Trials mode, press in sequence L, R, L, R, X, Y, X, Y, Z when the options menu is on-screen.
2. Write down the displayed password on the bottom of the screen.
3. Open https://waluigibsod.github.io/mkdd-password-decoder/.
4. Enter the password (e.g. 45CJNO5CJILF88Z3).
5. Read the decoded info.

More info on TCRF.

It's basically a fork of Version 1.2.3 of Dr. Mario 64 Password Decoder, another tool I wrote. Obviously the decoding algorithm is not the same.

The Adobe Flash application that I used as a base was made by Henke37, using in this case as a base a reverse-engineering of the algorithm from the game made by a person he forgot the name.

The source code is released under the GNU General Public License v 3.0 (see LICENSE in the root of the repository for a copy of the license and for more information).

This program may contain copyrighted material, the use of which may not have been specifically authorized by the copyright owner. This material is available in an effort to research on the password system of the videogame "Mario Kart: Double Dash!!", to provide a better tool to decode the passwords generated by the game.

This should constitute a ‘fair use’ of any such copyrighted material (referenced and provided for in section 107 of the US Copyright Law).

If you wish to use any copyrighted material from this program for purposes of your own that go beyond ‘fair use’, you must obtain expressed permission from the copyright owner.