Archer Maclean's Mercury is a platform-puzzle video game for the PlayStation Portable developed by the eponymous British game programmer, Archer Maclean and Awesome Studios. In Mercury, the objective is to guide a drop of mercury to its designated destination by tilting the stage, similar to Marble Madness and Super Monkey Ball. Levels come in different varieties which prioritize different methods to complete each level. The game was conceived when Archer Maclean used a previous Cueball World minigame by Jimmy White and added liquid metal physics. It was originally designed to have motion controls using a tilt sensor peripheral for the PSP, but was never released due to technical constraints. Mercury was released in North America on April 6, 2005 and in Europe on September 1, 2005.
