While dogs have a higher playtime profile, with elite Frisbee competitions and obstacle courses in dog parks, cats go for their own lower-key version of the summer Olympics. You won't need a leash or expanse of sunny lawn, just some imagination and your cat's own sense of curiosity. You may have to offer a little extra encouragement to entice Kitty away from bird-watching at the window, as cats usually like to see a demo before spending their energy learning the rules for a new game. All of these games include your participation, the playtime ingredient cats enjoy most. By the way, these games come tested and approved by my own cats.