Ice Cream Madness - mad tricycling fun.
This is a MagicSpark project. Details aren't quite public yet, but they're discussed in private sections on the MK forums: http://magicspark.org/
Ice Cream Madness uses the inception engine: http://github.com/nddrylliog/inception-engine And it rocks. (Your socks)
If you want to contribute just drop us a message on the forums!