Haha, funny video. But seriously, it would be really good to get him a real trumpet teacher, we can only help a little bit because we don't know exactly what his problem is. My advice: to play higher, you need to make the aperture (the hole in the lips that the air comes out of) smaller. Tighten the aperture and the note will go higher. Think of it like a water hose, when you put your finger over the end of hose and make the hole smaller, the water comes out faster - that is basically what we are trying to accomplish.