Hi A.!
Two suggestions, only problem might be location. First is a neat place called Checkered Go Kart on Pulaki Hwy. (Rt. 40). Kids get to mini golf, go kart ride (they have age appropriate karts), Carvel ice cream cake, pizza & sodas. Problem is it's all outside so if the weather is bad it sucks. Another thought is Eastpoint Mall (between North Point Blvd. & Eastern Ave.) has a place called Ultra Zone. It's laser tag. It's a great way for the little men & ladies to burn off some energy. If you have a B-day party there, only the little ones can go in together. There's flashing lights, music, they wear vests with different colors & try to laser each other while hiding in little cubby holes, etc. It's a lot of fun (I'm terrible at it). They also have rooms where you can do the cake & pizza thing, I'm not sure what's included anymore, but it was an extreme hit with my Son's friends a few years ago. The adults from the party can play also. Plus there's a video arcade there too & you get so many tokens to give to the kids.
Good luck!!