The actual fighting mechanic is simple. Left clicking blocks enemy attacks and right clicking attacks the enemy. You alternate between blocking and attacking throughout the game, depending on the situation. You will fight through many enemies at a time, including robots and a boss villain. At times, you will need to tap a specific button several times. The game indicates this by flashing a color. If this is the color of the Powerpuff Girl you are playing as, it’s a cue to attack. If it’s red, it’s to defend.