Hm, I'm out for this one. Made a bit of progress, but it's become rather buggy and messy, and I don't have the time to clean it up to a simply playable state. It's been fun, I got to play around with blend modes a bit, which is something I haven't had a chance to do yet, but I have a couple other things I need to be doing.
Best of luck to those still in the dare!