I am 32 and enjoyed myself there at a private party. Kids at Play is for all ages, it's just a small venue.
Depends on the nine year old: the archery is cool, the zip line would be fun, but he would definitely enjoy the video floor game. I enjoyed the video floor game and I'm 69.
A 9 year old by themselves would feel older but a 9 year old with others their age would have fun.
Any age group
They have a variety of things to do. A 9 year old might enjoy themselves there. Over 9....I would say no. Also check out the Arts and crafts. My daughter really enjoyed it.
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