The World Ends with You

From Wikipedia

The World Ends With You's story is based on the "Reapers' Game". The Game itself is a continual week-long contest for the enjoyment of the Reapers. A Composer and a Conductor design the overall Game, while each week, a new Gamemaster (GM) is chosen to create missions for each day of the week; other Reapers monitor the game, and "erase" any Player that fails. Players, who are people who have recently died in real life (the Real Ground, or RG), are brought into the Game and are offered a second chance at life if they win. However, to enter the Game, each Player must sacrifice their most prized possession. The Game is played in an alternate dimension known as the Underground (UG) across the Shibuya shopping district of Tokyo, Japan. Players are invisible to the people in the RG, though they can read and at times influence their thoughts. Players are required to sync up with another Player, and those that fail to have a partner are also erased by the Reapers. The UG is also home to creatures known as "Noise" that are created from the negative feelings of living persons, and Players are often required to defeat them in order to progress in the Game. Missions are given to the Players via cellphone and their hand is imprinted with a countdown indicating the time left in the mission. After one day's mission is complete, remaining Players are brought to the next day, with no conscious recollection of any events in between.

Im currently playing this game... next to Midnight Play Pack. It is quite addicting. Why? I can't explain. lol.