Many fruit machines have a 'hold' button. This lets you pause certain reels during play, increasing the chances of winning. For example, if you had two lemons in a row, you could hit 'hold' and continue spinning the remaining reel in the hope of getting another lemon. Some fruit machines also have a 'cancel' button.
Zen Mode is one of the three main modes in Fruit Ninja. In this mode, the player must slice as much fruit as they can, and they can also slice fruit combos. This game mode lasts 90 seconds (1 minute and 30 seconds).