Sonic Hearts

Sonic Hearts (ソニックハーツ) is a mobile phone game released as part of the Sonic Cafe service offered by Sega. In this game, Sonic, Tails, Knuckles and Amy Rose play the Hearts card game that is most well known from being distributed in Windows - the idea is to get rid of all your cards and score the least points possible. After 4 games, each with a different starting player, the player with the least points is the winner. The player can upload high-scores to the high-scores server.