How can I entertain a 6 year old boy?

All he wants to do is either play games or jump on the trampoline, and I am perfectly fine with that but then he randomly goes upstairs and annoys anyone up there! I tell him stay downstairs but I hate confining something with so much energy to one room. I can't get him to play imaginative games or do crafts or anything because he only wants those two things! When I give him the two things he gets bored and then just wants to go upstairs and annoy people and I told him he cant! GR Please help... If you answer- I love you! :D