Help to modify a game file

Hello I want to change a game file, the game is based in Unity 4.2, I have the .apk for android and the file .obb with all the data.

Contact me on skype: vicen2010dj


Thanks in advance!

That might help you. If you dont already know about "Game Killer" look it up. :]

Thanks bro I'll see it when I can (Y).
-------------------------------------------------------------------------
If any other person can help me on skype could be nice