FF1,2,3,4,5,6,7,8,9 - Airship where I can ride myself
FF3 - Fat Chocobo
FF4 - Tower of Babil & Giant of Babil & Moon
FF5 - Big bridge battle with Gilgamesh
FF6 - Colloseum
FF7 - Chocobo Race, Gold Saucer
FF8 - Card Game
FF10 - Blitzball
FF12 - Ganbit system

can't think of others atm...