Pool 8 is a brain-teasing puzzle game based on a Pool board. 

Pot the balls in the correct order to move through a series of increasingly difficult challenges!

How to play?

The unique mechanics in this game mean you can only move up, down, left, and right. There are no diagonal movements, which poses a tricky challenge when several balls are on the table. The key to winning the level is to think about the order of each move to ensure you can line up all the shots successfully.

There's a multitude of difficulty levels that you naturally progress through, starting with the easiest "rookie" level. At the end of each difficulty level, you get a chance to win extra retries in the "smash the candies" bonus round. You can also earn these by watching a short video ad.
Yes, but it starts out easy. As you progress, you reach higher difficulty levels.

You can use your retries. If you don't have any, they can be awarded by completing the bonus levels or watching a short advertisement.