The Tails games should count. It shouldn't matter if Sonic himself makes an appearance. That's like saying the Luigi game for Wii U isn't a Mario game because you can't choose Mario. I guess Knuckles Chaotix is eliminated too due to the lack of Sonic? >_>

Mean Bean Machine never counts. That's like saying Mario USA is a Mario game. Sorry but hacking a different game's ROM to force a different franchise's sprites into it doesn't make a new entry for said franchise. It's just Puyopuyo/ぷよぷよ :P