Online dolphin colouring game. Choose the model you like best at the start of the game. There are several dolphin drawings, with a ball, two dolphins playing or a dolphin with a flower. Colour these drawings in black and white by selecting with the mouse the colour to apply and the size of the brush. To vary the size of the paint, click successively on the red dot, which will indicate how thick or thin your virtual marker will paint these dolphin drawings.