Move the bees around by tapping them once to select, and once on a neighbouring cell to move/swap them.  If a bee has 3 or more neighbours of the same colour, they will all fly off!

You need to make groups of 4 or more matching bees before the queue of bees at the top of the screen fills up.

Make rings of bees for maximum points.

Watch out for the black bees, they don't match and will get in the way!