The JJ2 Community is less obsessed with taking everything from the game and putting it into various image files than some communities, and as such we don't have the JJ2 font ready to download. Especially since there are like three different sizes:

Small size (Chatting/names/etc): It's pretty easy to get anything you like in this, as all you need do is type it out yourself and take a screenshot.
Medium size (Menus/etc): I've got an image with most of the basic characters (letters, numbers, a few brackets and punctuation, etc)... but other than that, I don't think it's available.
Large size (I forget, but it's used somewhere): Nothing.

For the most part, just copy it out yourself if you really want to use it for some reason.