Everyone is luckluster and no one is rememberable. Ballboy, is mildly entertaining. New characters are added by the dozen and just as quickly thrown away. I can't tell if any of it's from in-game, since I've never played it. The end song singer sucks, too.
Some voices are fair at best, but cruddy dialogue ruins a lot of it.
Some of if, especially in the beginning, looks nice. But most is low-quality and looks rushed, especially character design. It is good, however, when it comes to backgrounds and locations. It is based on an obscure Neo-Geo game that I doubt anyone has ever heard of. There's globs of it in this movie.