Get the game on GOG, including JJ2+, a patch with countless features for the gameplay:
https://www.gog.com/game/jazz_jackrab...
https://gog.jj2.plus/

If you already have JJ2 you can get JJ2+ here:
https://www.jazz2online.com/jcf/showt... 

more about our Jazz Jackrabbit 2 online community: 
https://www.jazz2online.com/7/multipl... (multiplayer FAQ)
https://www.jazz2online.com/ (JJ2 related downloads, forums, information and news)
https://jazzjackrabbit.net/ (competitive JJ2 online community)

You are welcome to join us!

Voter pour JJ2 Multiplayer