OpenJazz is a free, open-source version of the classic Jazz Jackrabbit games. OpenJazz can be compiled on a wide range of operating systems. To play, you will need the files from one of the original games.

Release notes:

I updated the openjazz pnd with the latest svn source, and these awesome changes have occured since the last release (theres also been a good amount of work in the svn since the last release:
http://dl.openhandhelds.org/cgi-bin/pandora.cgi?0,0,0,0,35,55

Jazz Jackrabbit 2 levels1/7/’10 I’m pleased to announce that I’ve just added support for Jazz Jackrabbit 2â„¢ level files. Select “specific level” from the episode list, and you can now type in the name of any level you want. Support is very limited at the moment, but there’s more to come.

As you make your way from the launch of the program to the end of a level, you’ll notice a bunch of other new features:

* The first change you’ll see is Jazz blinking during the introductory cutscene, thanks to AnotherGuest. Other cutscenes have also improved.
* Next, you’ll see that the main menu now has a plasma-y background effect, thanks to Alireza Nejati.
* When you load up a level, you’ll be greeted by a planetary approach sequence.
* In-game, you’ll find that animations are now positioned more accurately. Bad guys now explode properly, too. Thanks to Newspaz for both of these.

Bonus levels27/4/’10 Today’s release features an incomplete implementation of bonus levels. Gems can be collected and all levels can be completed, but road hazards do nothing.

There’s also been more work on cutscenes, and the opening animation is now working.

http://dl.openhandhelds.org/cgi-bin/pandora.cgi?0,0,0,0,35,55