For you boys and girls who played the classic Space Invaders back in the Stone Age, welcome back! Okay, so it isn't it exactly, but very, very close. I don't normally play marble popper games but thought I'd try this one. It's definitely worth a look for those of you who want something eminently playable. I don't know how challenging it gets as it goes on, but my guess is the game will give you a run for your money. The best thing is what the invaders look like when you lose!