There was a sort of contest on youtube about Jumpcraft maps. Jumpcraft is way of playing Minecraft that consists of performing parkour tricks jumping around, basically a platformer games, but using some nice Minecraft mechanics.
The gameplay is based around the sand block: This block falls when used (because physics). So the players can perform tricks like walljumping by jumping and placing sand under them as they run. But the have to be very fast and precise to not fall with the sand.
So I made a map for this contest, and also wanted to have a nice theme to it and spent a lot of time putting it all together. Here's the video