The winners and highest-scoring losers during a series were invited back at its end to compete in a tournament for prizes.
When the grey spheres were placed in the corners, the starting arrangement of the board was such that all four of them had to be changed before any contestant could make a scoring line.
The board was not reset, however, and the colour cycle ran in reverse order (blue to orange to red).
If a game or episode ended in a tie for high score, the contestant with more spheres in their own colour was the winner.
This round was played identically to the Sphere Game, but the three given letters read the same forwards and backwards (e.g. "ELE").
In the first two series, the highest scorer of the Sphere Game played this round alone, using a grid of 16 words that each contained one of the two three-letter sequences that had just been used.
From Series 3 onwards, all three contestants had a chance to play the Star Game in ascending order of score from the previous round.