When I was eleven years old, it was a very good year, and I can remember my daily routine vividly. These were the years before I owned a Sony Playstation, and I used to venture to my friends house - everyday after school - to watch him play through Final...
It's necessary to collect at least three the same colors balls in the chains to destroy them.
If after two moves in succesion a chain of balls isn't destroyed, all balls will be shifted one row down. And a new top row containing balls of all colors will be added.