Mass Attack? This game seems to have got a wrong name as its got nothing to do with Alien Invaders. Its a balancing act actually. You have balls, yes so do I, but you have Iron balls in this game that you need to balance.

How to Play Mass Attack?

Left click to create a ball, as you hold the mouse button down the ball grows bigger. The objective of the games is to balance the two scales keeping in mind the difference set by the level. You easily get a hang of it after playing for a couple of levels, its very similar to levers.

Play Mass Attack : The Balancing Act