Object of the game: Eliminate groups of 4 or more marbles of the same color vertically or horizontally. Your next two pieces are displayed on the left side of the page, with the current piece displayed at the bottom.

Marbles: There are 7 different colors of marbles, a white marble, a black marble, and a rainbow marble. Place a marble onto the board by clicking on the square.
Black marbles cannot be matched and must be rolled off the board, destroyed with dynamite, or colored with ink.
White marbles change into a random color after they are placed on the board.
Rainbow marbles can be matched with any color (except black).

Arrow Pieces: Arrow pieces allow you to roll marbles one square in the direction of the arrow. To roll a marble, simply click on the marble. You cannot roll a marble into another marble, but you can roll a marble off the board. However, if you roll 3 marbles off the board, the game is over. Making a match (by eliminating a group of 4 or more pieces of the same color) will reset this counter. So you may safely roll 2 marbles off the board for each match you make.

Ink Pieces: There are 7 colored ink pieces, a white ink, and a black ink. Ink changes the color of the marble to match the color of the ink. To use an ink piece, click on the marble and its color will change. You cannot use colored ink on a marble of the same color.
Black ink turns a marble black and the marble can no longer be matched. It must be rolled off the board, destroyed with dynamite, or colored with another ink.
White ink turns a marble into a random color.

Cubes: There are 7 different colors of cubes, a white cube, a black cube, and a rainbow cube. Cubes are identical to marbles, except they cannot be moved using arrow pieces.

Dynamite: The dynamite piece destroys one marble on the board. To use the dynamite, click on the marble you wish to destroy. Destroying a piece is not the same as rolling a piece off the board, and any number of pieces can be destroyed in this manner.

Matching Pieces: Four or more of the same colored marble in a row creates a match. Those marbles are removed from the board and the tiles under those marbles change color. Silver tiles will turn to gold. Gold tiles will turn back to silver, and create a random marble on that square.

Losing the Game: The game is over if you roll 3 marbles off the side of the board, or cannot play your next piece.