Sonic's Millionaires

Sonic's Millionaires (ソニックの大富豪, aka Sonic no Daifugou) is a mobile phone game released as part of the Sonic Cafe service offered by Sega. In this game, Sonic, Tails, Amy Rose and Knuckles play the card game Millionaire, with the player as Sonic in the millionaire position. The game has the ability to upload high-scores to a server, and a statistics viewing system.