Destroy the gumballs by forming groups of 3 or more gumballs of the same colour.
Remove the right gumballs and keep the board clear before any gumballs reach the top.
To remove gumballs, click on same-coloured groups of gumballs (2 or more). The more gumballs you remove, the higher you score.
The timer/slider left of the playing field is counting down. Each time it resets a new row of gumballs will appear at the bottom and push the rest up. Once the gumballs reach the top, the game is over.