That's a cool idea! The clock is really short, but I liked it, it forces creative solutions. I don't even know if the solutions I used were anticipated, I think that it would be really cool to have a star/rating system that you can get from 1 to 3 stars depending on how much sand you carry to the end. I abused a lot of 45-degree angled blocks, and the fact that you can jump in a falling block and save using bigger or multiple blocks. Great game!