JazzJackrabbit Community Forums http://www.jazz2online.com/jcf/ Forum for discussing Jazz Jackrabbit 2, its sequels and the online game community. Active since 2001! en Thu, 29 Oct 2026 00:04:43 GMT vBulletin 60 https://www.jazz2online.com/jcf/images/misc/rss.jpg JazzJackrabbit Community Forums http://www.jazz2online.com/jcf/ Jazz Jackrabbit - Opus Edition http://www.jazz2online.com/jcf/showthread.php?t=20942&goto=newpost Sun, 25 Oct 2026 21:06:41 GMT https://github.com/JuliusBrussee/jaz...bit-remastered < info
https://juliusbrussee.github.io/jazz...it-remastered/ < play online

This is a fascinating one! A remake of JJ1 made by the son of Arjan Brussee, the guy who programmed JJ1 in the first place.

But when I say "made by," I mean:
Quote:
One prompt [to Claude Code], then a few follow-ups asking for the GitHub repo, the screenshots and the video.
So it's still sweet that Arjan's son wanted to make this--unless you're sufficiently anti-AI that even the impulse isn't sweet--but I'm more interested in the game. It doesn't play super well, let's be real. Ammo's sparse, enemies are a bit repetitive, level design is too horizontal. I've definitely played worse, but it's not going to surpass JJ1.

I'm just fascinated by what Claude knows about Jazz Jackrabbit, which is an indirect way of measuring what the internet knows about Jazz Jackrabbit. It's a 2D platformer! It has planets! You're a green rabbit with a gun and a headband! You can shoot blaster/bouncer/rf/toaster! You can copter ear by pressing jump in midair! You want to beat Devan! There are gems and food pickups, and the food gives you a working sugar rush!

On the other hand, it's clear what it doesn't know. It knows the names of JJ1's planets, and it has rough descriptions of some of them, but it does not know what they look like. It doesn't know their palettes, and most memorably, it thinks Letni is a desert. It gets the missile colors of RFs and seekers confused (although maybe it's just guessing, because red&white are common cartoon rocket colors). It has no idea what Devan looks like, and is clearly making things up for Tubelectric's spark enemies.

Level layouts are something I always wonder how AI can handle, and this is closer to a Mario, horizontal platforming over pits, but specifically made up of premade chunks grafted into full levels, which is an interesting take (but obviously not how JJ1 did it).

Whatever your take on AI, I think it's absolutely wild that more or less "one prompt" can spit out an entire playable video game like this, and one with a more than passing resemblance to Jazz Jackrabbit no less. Again, it's not stellar, but I've played plenty of much worse games that were made by hand. Everything about this would have been inconceivable in the very, very recent past! Heck, you could absolutely take this as a basis and make something better if you wanted to.

Anyway if you want to play a platforming fangame not made with AI, there's Rabbit's Revenge, or Bun & Gun. This one is interesting for what it says about AI, if you ask me anyway. ]]> Beyond Jazz Jackrabbit 2 Violet CLM http://www.jazz2online.com/jcf/showthread.php?t=20942 <![CDATA[Bug Report JJ2+ doesn't return to 8-bit after 32-bit levels]]> http://www.jazz2online.com/jcf/showthread.php?t=20941&goto=newpost Tue, 20 Oct 2026 23:43:11 GMT 16-bit forced by 32-bit tiles and sprites does not return to 8-bit the level after ]]> JJ2+ Issue Tracker FawFul http://www.jazz2online.com/jcf/showthread.php?t=20941 Bug Report Several minor bugs related to idleserver and 32-bit http://www.jazz2online.com/jcf/showthread.php?t=20940&goto=newpost Tue, 20 Oct 2026 19:13:30 GMT I can't be arsed to bug report things thoroughly that other people have found in the past and don't report this time. But I still want to put it on here anyway.

Issues:
- Allegedly /idleserver on causes 10 ms extra lag for every client
- /idleserver off causes slower level cycling (because you have to wait for the host to get to the next level, and an afk spectating host has a score screen that the host does not skip.)
- /idleserver on and spectating your server sucks, because you can't follow players. Any spying or trying to confirm suspicion of people cheating can not be handled. Ideally the spectating itself is the same for both modes and drawing of tiles only happens for x minutes if the the host interacts with keys.
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]]> JJ2+ Issue Tracker FawFul http://www.jazz2online.com/jcf/showthread.php?t=20940 New Plus version 6.6h no longer works on Windows XP http://www.jazz2online.com/jcf/showthread.php?t=20939&goto=newpost Tue, 06 Oct 2026 11:21:26 GMT Jazz2 starts without plus with the following error:
The procedure entry point RegGetValueA could not be located in the dynamic link library ADVAPI32.dll
Good that all of the 6.6 versions are compatible and it does not affect online playing yet.
Can rollback to 6.6g and still play normally.
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File Type: png image.png (5.8 KB)
]]> JJ2+ Issue Tracker AGENT CLANK http://www.jazz2online.com/jcf/showthread.php?t=20939