Stacks is a fun filled tower building game where both your mental agility and fast reflexes will be challenged.
The objective is to build Stacks made up of various sized disks. Once a Stack has been built, it'll collapse - freeing up the board for other stacks to be built.
New disks will be dropped onto the board, and it's up to you to ensure that the new disks do not drop onto smaller ones. You may have to rearrange the existing disks on the board to build new stacks, but you cannot place larger disks on top of smaller disks.
Time is against you; the Bonus Bar is your friend, and quick nimble reflexes will get you through to the next level.