Playing coreball is easy, but it's a lot of fun and tests your patience and skill. To play Coreball, players only need to throw small balls into a circle that is turning while keeping them from hitting each other. It sounds easy, but with each level, the number of balls and the speed of the spinning speed up, making the game harder and more time-sensitive. Because Coreball is a "play fast, try again immediately" game, players don't have to feel down after each failure. You can start over with just a click or touch of the screen, which makes the game very addicting.