I guess GP means, I start drawing a cat, and it becomes a nicely drawn cat, then I add wings and a horn and a pistol and it becomes a flying laser unicorn cat.
Yes, exactly. And then you start sketching a few rough buildings, a beam, some comets, some explosions, and a helicopter: it becomes a drawing of a giant flying unicorn laser cat from space, attacking Tokyo.
Edit: something like this [0].
[0] https://s-media-cache-ak0.pinimg.com/564x/78/9c/99/789c99430...