As close to PERFECT as you can ever get

My wife, me, and my 6 year old son, each at their own computer, playing the game in 3-player cooperative mode. And again, and again, and again. We can't get enough of it. "Just one more level!" my wife says, and then, 2 hours and 4 levels later, someone says "We should really start making lunch, it's getting dark outside..." :-) Get this, get as many copies as you can -- you won't be disappointed.