Crane Fever is a Mini-game in Kirby's Adventure.
Game
In Crane Fever, you control a crane arm in order to obtain Kirby plushies (They give you extra lives. If you catch a small plushy, you will get 1 extra life. If you get a big one, you will get two extra lives.). Press A to activate the arm. Press A at the right time to pick up a plushy. If the arm picks them up at a short distance, it should be sure to drop the plushy into the hole. But if it picks them up at a longer distance, there is a chance it will accidentally let go of the plushy (This chance will increase if you catch a small one, since the arm has a smaller grip on those.). This process will be done twice.