I'm really interested in a theme that accompanies the episode when Asuka and Sinji destroy double-cored Angel by a synchronized attack, I mean the music the follow this exact process. Unfortunately, I don't know its title. I'd like to know if anyone has a piano version sheets or at least piano part sheets as it's the main part in the theme. Thanks in advance.

if my memory serves me correctly, the bgm in that scene is "Both of you, Dance Like You Want to Win!", of which a transcribed piano score is available at http://sperion.web.fc2.com

That's it! May God bless you, my friend!
*gone studying it*