During TGS, Microsoft revealed "Codename D
" by Grasshopper Manufacture, a Kinect game for XBLA involving ... evil things in an amusement park, and a guy with a magically flaming baseball, if the trailer is any indication. Given the "evil" and "baseball" elements in said trailer, it seems likely that the name "Diabolical Pitch," just trademarked in Japan by GHM, applies to this. Also, the name starts with a D. By the way, if you missed the trailer, you can see it after the break.
If true, that name suggests that there's more to that flaming baseball than just being a weird weapon at hand. Perhaps you actually play the game by pitching virtual baseballs at evil tiger-mask guys?