This is an interesting idea. I'm not sure if it's for me, but I think it was worth trying for sure, and maybe worth polishing into a finished game.
The pong mechanics seem to be well implemented. The paddles move slowly, but they do in most versions of Pong. so that seems about right. I'm not a fan of the dramatic screen shake, but it's an aesthetic. I'm not really sure what the green things do; they don't seem to have an obvious effect when you collect them.
I think the only thing I didn't like is that the menu graphics really don't match the aesthetic of the rest of the game. The game itself is simple, few solid colours, blocky. The menu graphics should be similar, the bright buttons with gradients and lighting don't match.