In 3x64 you will try to connect blocks of the same colors on the constantly changing game board. Every direction of gravity has a unique active color - destroying blocks of the same color guarantees you one of many mighty powerups. Gravity is changing faster and faster, and you should always be prepared for bigger challenges!
The anniversary update has two main focus - the new gameplay features (ingame quests) and improving technical side of the game including the most requested features like support for gamepads, cloud profiles and UI improvements.