I haven\'t played ZOE so I can\'t say much about this game from personal experience. Though, from the reviews here and elsewhere, the impression I got was, okay game that fell WAY short (in more ways then one). Length wise, it was too short, and the battles were too repetitive. Gameplay wise I heard, was fine, minus the two issues mentioned.
Those problems have NOT gone unnoticed by Konami from what I gather from the interviews. Those problems that most people complained about ZOE1 has been adressed in ZOE2. Its longer, less repetitive battles, and more boss fights (which is one of the things ZOE1 had that most people believe to be the best). Whether thats enough or not, up to the player.
Now, will ZOE1\'s problems hurt ZOE2\'s sales? Possible. But, given the many improvements (graphics of coarse, as well as gameplay and game length) I think it will sell well on its own.