If the game is installed and you do not want to have to uninstall and reinstall it, you can copy it to the hard drive(lets say d : \ games \) and then make a junction from the "old" folder on the SSD to the "new" folder on the hard drive.
http://www.tomshardware.com/forum/294557-32-guide-move-software-games-drive-reinstalling
This can work both ways, so if at any point you have a game you WANT on the SSD and it is installed on the hard drive, you can make a folder on the SSD c: \ Games \ and move the game folder over and create a junction from the hard drive to the ssd.
The nice thing is the game does not know it has been moved and you do not have to reinstall or get updates.