My not-so-litttle guy is going to be 9 in 2 months (which makes me want to cry that he'll be in double digits next year)! Ah, I'm such a baby

Anyway, not the purpose of this post... the purpose is, what to do for a 9 year olds birthday? We have done birthday parties with the works for the past however long. I wanted to do something new for him this year. Any ideas for something cool to do for a 9 year old boy? I've asked him what he wants to do and his auto-reponse is "I don't know".
Oh, and his interests include everything football. That's about it.
Re: What to do...
Do you have an amusement park nearby? Tickets for there with a friend would be great.
What about some type of sport camp for this summer? Or look to see if a major city near you has a place like this (this one's in Pittsburgh)
https://www.carnegiesciencecenter.org/exhibits/highmark-sportsworks-exhibits/
Flag football???
I believe my nephew went bowling for his...
A big flag football game would be awesome! I can get all his little buddies together and whatnot. Hmm. Thanks for the feedback ladies.
I don't know where you live, but if it's warm you could do a massive water fight. A friend of mine just did that for her son who turned 10. They put sprayers on their hoses, filled hundreds and hundreds of water ballons, provided a faucet with buckets, etc. They also rented a trampoline and covered it with soap and put a sprinker underneath it. Then they did a BBQ and movie night. It was a blast.
Or what about a beach bonfire night? Roast hot dogs and marshmallows, sandcastle buidling contest, soccer (or football!) match.... Once my friends from youth group figured out how to drag a TV down to the beach and watch a movie there in beach chairs.... it's a great idea if you can figure out how to do it
Laser tag
Mini Golf
Go Kart
Amusement park
Swimming
Paintball
Water park
Bowling
Jump zone type place
Do you have a Pump it Up in your area? My nephew had a birthday party there a couple years ago and he is sounded like he had a blast.
A kiss he will never forget- Disney World 2014
Football is good, lol. How about a backyard bbq party, "tailgate style," with some balls for the boys to play with, or maybe even get some little cones and set up a flag-football game?
FTR When I was nine I had a Star Wars themed birthday party. It was awesome.