You should post the Ludum Dare link here, along with instructions.
Recent community posts
All of the sound effects are original, and are made in bfxr. If you download the source code you should be able to find the source audio files for them. You can use the countdown sound if you want.
The music is also original, and made in Macrotune.
It gives that warning for .exes too, pretty much any non-web game on here. Most people don't mind.
I know it is possible to run a jar file with an exe launcher of some kind (similar to Minecraft), but I don't know how complicated that is to implement.
I'll check the game out when it isn't an hour after midnight :P
Java applets aren't supported anymore in Chrome, and I think other browsers are following suit (NPAPI based plugins in general are being phased out.)
It looks like Itch does support it, though. Just keep in mind that the future of in-browser support for Java applets is sketchy, unless Oracle makes a native interpreter/whatever you call it for Java.
(Actually, if you are using Chrome that may explain the game not running, on my Chromebook at least it just shows nothing for the Java games on Itch.)
I love the touch of your logo being upside down :) Wish I had thought of it.
The music and the art are also great, the person is simple, but he reminds me of some of the very early atari vcs games.