Yeah, the Pacman part is the same. But when he hits, the opponent is trapped in a massive spider web, then black spiders crawl out from everywhere until the screen turn black and ASTRAL FINISH! ...Followed by messy blood on the screen (I wonder how's ESRB will hit this one).
Noel also has a new Astral, while Tsubaki's hardly changed (according to what I've heard).
A loli can be roughly translated as an underaged girl (though lolicons will kill me if they hear that), but the term is apparently a bit more complex. Basically, characters with appearance like Platinum and Rachel are lolis. Physical features are usually underdeveloped, flat-chested and short.
Tsubaki is more like obsessed with superheroes, actually. In the end, she keeps making others worried just like Noel (especially in The Wheel of Fortune). Speaking of which, I love that Drama CD much more than the main series, for some reason T T