Archer Maclean's Mercury was supposed to be something like that. You have control over a big bead of Hg and your goal is to tilt the world in order to maneuver the bead to the goal, while spilling as little mercury off the platform edges as possible. It sounded intriguing, and the other puzzle game on the PSP had been a hit, so I figured I may as well give it a whirl..



Link: Netjak