I think Capcom announced that they were shutting down Clover before God Hand was actually released. If it was any one game that did it, it was probably Okami, which is too bad because it's one of the big four. (Viewtiful Joe, Viewtiful Joe 2, Okami, and God Hand.) What really killed them was poor sales. Definitely not the quality of the product they were putting out. Those four games are cited as some of the most tragically underrated games of last gen (or ever).