Ok uno when gohan turns ssj2 against cell what music is been played in the background and when he fire the last beam at cell ner the end were vegate attack him?

Answer 1

Depends which version you are talking about but in the English version i believe that the music playing, when the final beam is fired by gohan after vegeta attacks, is a combination of two themes. first (As vegeta fires) the Vegeta Super Saiyan Theme, and the second one (Where Cell is being destroyed) is the Ginyu Transformation theme. Not totally sure about what the music is when he turns SSJ2