A little late to the party, having decided to participate 5 hours ago, but decided what the heck; just go for something simple and fast.. you only have one after all 
I really enjoyed making this tonight, it’s a very simple concept where you only have one cube that falls:

And you gotta avoid other bad cubes. Only if it hits a bad cube it splits into 8 octants recursively up to depth 5, plays a sound, and bounces of walls:

You loose when there’s not bits of the cube left, and the high score (time) is recorded.
Play/rate/comment here:
http://www.ludumdare.com/compo/ludum-dare-28/?action=preview&uid=26001
I streamed the 5 hour design & dev process on twitch (streams in the above link). It went according to plan with only a couple of minor problems that got sorted fairly quickly, and somehow managed a couple of hours polish! Very happy to have participated, and looking forward to playing your games tomorrow 😀
Night night!! @cwkx