Imaginative! To the question if "pixel porn works": not sure. I guess this story works mostly due to the kinky plot and because it targets the bi/gay audience with the cumshot kink. But the big pixels would start to become a problem once the game runs fullscreen and not just in this tiny subwindow of the web view. Then, if you make it with 3D models (say, Daz G9), the boys would lose much of their appeal (?). They only really stay cute as long they are like this, pixelated, or maybe hentai. Maybe you could apply an AI hentai transformer on top of Daz renders, I've seen it work well with girl models at least