Puyo Puyo is a RPG, Sharky. It started in Madou Monogatari series. They are just using the characters on Puyo Puyo.
Unfortunately, Sega does not owns Madou Monogatari copyrights, and this is completely ridiculous, since all the famous characters cames from that world.
Puyopuyo is the first battle puzzle game in the world, and its also considered the best and most successful puzzle game after Tetris... at least in Japan.
I dont like the new characters designers, the old one was better, and my favorite rule is from Puyopuyo~n(or Puyopuyo 4). Too bad that one is the only one rule Sega never brings back...
Sega used some of the original creators on the first Puyopuyo made by the company (it was Puyopuyo Fever) but I think they are doing the things alone now.
Well, Its a shame it is DS only, but I love the series and will pre-order it soon as possible.
People just dont know how to pronounce the new title, since Sega has not numbered it. The new title is [PUYOPUYO!!] WTF?? It was supposed to be "8" instead "!!".