Music- the music is continuos throughout the whole clip. It i quite quiet compared to the voice over and the dialog

00:05 there is dialog till 00:12 of the voice over. This is diegetic and non diegetic sound because the person he is speaking to can hear it but the people in the shot cannot.

00:12 there is diegetic sound of somone saying 'hey no powers'

00:13 sound effect of basketball bouncing

00:16 more voice over till 00:22

00:22 sound effects of discs flying till 00:24

00:24 lazer sound effects and discs smashing and also some voice over. sound effects finishing at 00:28. voiceover finishing at 00:30

00:32 start of voice over, finishing at 00:54 with sound effects of fire ball at 00:50-00:51

00:57 sound effect of the ice coming from the boys finger till 00:56

01:03 smashing of ice on the floor

01:13 diegetic sound of Bobby introducing him self and Rouge introducing her self 00:17

01:18 voice over till 01:28

01:28 Bobby diaglog till 01:30

Key-
Yellow- music
Red- voice over
Green- sound effects
Orange- dialog 

The dialog and voice over never overlap so the viewer can concentrate on what is going on at that point in the clip. It can get confusing if they are talking over each other. It also gives a chance to see what is actually happening rather than just  what the voice over is saying.

The music is instrumental and changes when important things are said. For example when the voice over says 'X-men' the music becomes louder and then Bobby says 'welcome to mutant high' This works as like an introduction and symbolises the end of the answer to wolfvereens's question.