Kill Virus

Connect the virus to kill them in this html5 game. Press any virus to start. Now move the 'mouse or finger tip' on identical adjacent virus (horizontally, vertically or diagonally). Select at least 3 virus. Release mouse button to make them match. Each 6th virus will give a bonus. More than 7 virus will give you a time bonus. Kill the request virus within the giving time, or you will lose the game. What's the max level can you play?