First The Boring Business:
Rule #1: Never allow your hands to be the toy. This is encouraging negative behavior and you will eventually regret it.
Rule #2: Let your cat win sometimes. If there's no "kill" in the hunt, your cat will likely be discouraged and not want to play the game.
Rule #3: Take the cues from your cat. Cats can be great communicators, if we listen. Pay attention to your cat's responses to determine what kind of play she likes best. Not every cat will like every game. Dawn and dusk are times when your cat may be particularly active.
Rule #4: All toy play should be monitored to avoid injury, foreign object ingestion, choking, etc. When the play is done, up go the toys.
Treasure Hunt is loads of fun! Grab an old purse or bag and start stuffing. Fill it with toy mice, touch activated blinkers/noise makers, tissue paper, feathers, catnip-stuffed balls and the like. Sprinkle in a few of Fifi's favorite treats and you've got tons of cat fun! Set your pirate cat loose to explore the booty!
Basket Games are fun and inexpensive. A basket and a ball, just add cat and watch the antics! Change it up, flip the basket over with a yummy treat caged inside and watch Fifi navigate a way to facilitate a prison-break for the treat.