Homebrew developer Sephiroth_FF7 has released GhostBustersDS v0.3. If you're not familiar with the program, it is a game which places players on a mission to defend New York City from various ghosts.

Quite a few changes have been done to the game since version 0.1. Among the updates include some various bug-fixes in the game as well as the addition of some new pathways to Zuul. Here's the translated change-log  (the release post is in French) courtesy of Google Translate:

29/12/07 Version 0.3

• Adding to passage in ZUUL

• Bugfixes
• Passage at the entrance to ZUUL