Select a bug or tap on it, and then click on an empty square to move the bug, to group it with bugs of same colors or pop them off. A clear path should exist between the bug and its destination.
Join at least three bugs to clear them off the board. Get bonus points for creating a row or column of 4 or 5 same colored bugs!
You can select from the two beautiful themes to play. The game ends when you are unable to move any bug.