Karen and Catsnclay have some good ideas you should follow. MrSpunky my 12 year old earned his name. He is still a punk but has finally chilled out some. Play, play, play. Get a cat tree or two. Sprinkle cat nip on it to attract him. Change out the toys because they get bored. The laser light is a lot of fun and doesn't tire you out.
Bath Tub hockey is great. I had a cat years back that would skate in the bathtub - no toys needed. Go figure.
Some cats are biters. Spunky is. I've never broken him of the habit. I just found other things to interest him. He does educate me.
Meowmie to Mr. Spunky, Samwise, Lady Jane, Bob, and Callie.
RIP Emily (Oct 8, 2013), Rose (Sept 24, 2001), Maggie (Fall 2003)