I would really like to join this jam, but unfortunately, this weekend is a little packed for me as it is.
Well, maybe next time.
Although, I have one question:
Do you have to create patterns in Danmakufu specifically, or can you create patterns via other programs as well?
I ask because I have written my own danmaku engine which is mostly finished (except for lasers, as these things just cause problems whenever I touch them) and random menu stuff and a bit of polishing things up.