The goal of the WASTE MANAGEMENT mini-game is to match all the items and empty the pile before the time runs out.
You can select an object by tapping it. You match items by having 3 of the same type. You can also deselect an item by tapping it. Items will be automatically deselected if you have 5 items selected at once.
If you run out of time, you can use Diamonds for extra time. Or you can exit the game and try again.