Amy's American Page One is a mobile phone game that was available through the Sonic Cafe service offered by Sega. Based on the Japanese card game, "American Page One," it features Amy competing against Rouge, Cream and a Hero Chao.
Tails no Flying Get is a mobile phone game released as part of the Sonic Cafe service offered by Sega. It was released just a day after Sonic Battle, with the intention that players could practice one of the mini-games.