If I could dive into the brains of my children, I would imagine this is what utopia looks like: a gigantic indoor play gym, toys, and tons of crazy, screaming, happy children. Run plus fun is the closest thing to utopia on a scalding summer day in Las Vegas.
There are plenty of slides, two ball pits, lots of things to climb, and an obstacle course like you're on American Gladiators. I love how there is a calmer designated area for smaller children as well as one for adults and everything is so clean! I have taken my kids to other indoor play places and this place wins. It is almost half an hour away from my house but it is well worth the drive.
P.S. Don't forget, everybody needs socks - including adults.