Coca-Cola on 14 March 2012
http://kotaku.com/5893142/this-xbox-360-game-demo-is-ten-hours-long-wait-what
The game is called Root Double: Before Crime*After Days
the game's ten hour-plus demo that takes players through the one of the game's endings. "Please check out this unprecedented demo," wrote the game's developer on its official site. Unprecedented, indeed.
The demo is available via Xbox Live in Japan.
