OpenJazz 3DS

OpenJazz
General
Author	carstene1ns, AlisterT, MrHuu
Type	Platform
Version	20260218
License	GPL-2.0
Last Updated	2026/02/18
Links
Download
Website
Source

This is a 3DS port of OpenJazz, an open sourced re-implementation of Jazz Jackrabbit 1 made by Alister Thomson, also known as Toxic Bunny.

The project is currently maintained by carstene1ns, and a demo release is made available by MrHuu which features the shareware version of the game.

Installation

Copy the 3DSX file to your SD card and the datafiles in the same directory as the 3DSX file.

If you don't have the datafiles, you can use the demo version (cannot save or upgrade to the full game).

User guide

Gameplay

This is a speedy, colorful action game. To play Jazz, you must understand three rules:

• Run like the wind.
• Shoot everything that moves.
• If you can't shoot it, take it.

Story

The notorious leader of the turtle terrorists, Devan Shell, has kidnapped the beloved rabbit princess, Eva Earlong, and has inhabited the galaxy with his goons. Is all hope lost? No way!

Enter: Jazz Jackrabbit!

The Galactic Rabbits want revenge and it's your job to extract it!

You have to save Eva Earlong and prevent Daven Shell from financing his maniacal plot of Turtle Domination by swiping the goods out from unfer hiis slimy beak.

Controls

Demo:

D-Pad - Move

A - Jump

X - Fire

Y/R - Pause

Start - Select

Select - Game menu

L - Show FPS and Game menu

Update:

D-Pad - Move

B - Jump, Swim

Y - Fire

A - Select

L - Show FPS

Start - Pause

Select - Game menu

Screenshots

Changelog

v.20260218

• This release fixes some long-standing graphics bugs and improves the user experience a bit:
  • SDL3 is now supported (though SDL2 is still the default)
  • Scaling options are now available again
  • Network support has been fixed for Windows builds and temporarily disabled for Wii builds
  • Movie playback should not show graphical artifacts anymore
• Misc changes:
  • Some bugfixes in loading code (levels, fonts, etc.)
  • psmplug has some playback fixes for ARM platforms
  • The counters at level end are now calculated like in the original instead of counting the real number of enemies/items
  • The logic when to play a cutscene or bonus level has been changed
• New ports:
  • Nintendo Switch
  • Android (currently only bare-bone, no configuration, needs external gamepad)
  • Mac Source Ports (Apple)

v.20240919

• The audio system has been refactored a bit and should now work again under Windows (#111)
• On Windows ship needed libraries instead of a "fat" executable, do not compress with UPX (#106)
• Implement loading of savegames
• Add WASM port for browsers: https://openjazz.github.io
• minor cleanups and bug fixes

v.20231028

• SDL2 support.
• Bugfixes and small improvements.
• No external dependencies besides SDL.
• CLI arguments, Logger.
• XDG directory support under Linux, *BSD and other Unices.
• Completely rewritten build system.

Credits

• AJ Thomson - Original author.
• carstene1ns - Current maintainer of OpenJazz.
• AlisterT - For OpenJazz.

External links

• GitHub - https://github.com/AlisterT/openjazz
• GBAtemp - https://gbatemp.net/threads/preview-of-openjazz-for-3ds-demo-included.547172