android game need to reskin and add button

i have this game but i need to reskin it and add one button, when the gameover user have one chance to retry the game from that place. add checkpoint point at 5000 point, suppose user lose their life at 6000 and they have collected that checkpoint at 5000 then user can continue their game from 5000 point bg clicking retrying game button. when user click on retrying button then video ads will play and after that they can continue. [login to view URL]