is a minimalist physics-based fighting game where players control clumsy sumo wrestlers. While the full version is a paid product, you can access free versions and demos through several channels:

Full version extra features. - Watch 4 guys stumble around! - 5 more destructible arenas! - Improved "intelligency" after match. - Gravitysensation Sumotori Dreams - Free Download

: A free screensaver version is also available for download on Gravity Sensation, which essentially acts as a non-interactive or limited version of the game's physics engine.

: Watch and control up to four wrestlers stumbling around simultaneously.