I remember back in the days a very popular dreamcast demo was showing deck of very big cards jumping on the screen without slowdown - mainly because of the tile

I remember back in the days a very popular dreamcast demo was showing deck of very big cards jumping on the screen without slowdown - mainly because of the tile rendering the dreamcast had (PowerVR). The only downside was transparency (and I guess still is), so people used to do checkerboard-transparency (e.g. imagine a chess/checkerboard - the white pixels stay, black are out) - then it was fun to combine this other transparency out there. Not sure how well it worked, but people tried it out.