How can you tell? I think this and castlevania will do pretty well. Can't remember when they release though so maybe I'll flip flop.
Hmm, he's right it does have a lot of the markings of the typical flop.
-Colorful characters and bright setting (seems most games that sell are gritty)
-New IP
-Perhaps most of all, it's not an FPS, RPG, RTS, etc. Not one of the established genres.
-Has a female sidekick
-Has good/ok graphics, but not amazing enough to stand out.
I dunno, like I said it does look like a flop. Maybe it wont be. But It smells like one to me. Hope they didnt spend too much on development...