I actually got more replay value out of the free version of this game than I did both Angry Birds and Candy Crush, which I paid a dollar or 2 for. I only play the free version, not the arcade version, its not as fun and I think only allows one free play every 24 hours or something like that. Game hasnt been updated in 2 years though, I wish they would extend the screen for iPhone 5 sized devices, or just shift it down so that my thumb doesnt get off the move-left-right area. Also wish they had a feature where you could have 2 or more ships side by side like in real Galaga. Also theres a delay sometimes when you move left and right, I think it happens when you take your finger off the screen and then put it back on and try to move again. Anyway, excellent replay and very smooth.
Sam-121217 about Galaga 30th Collection