OH MY FUCKING GOD.
I just picked up "The Palace of a Virgin" UMD with Hikaru Coto (cheap -- 1800 yen).
On the main menu there's a "GAME" option. It includes a shooter minigame where HIKARUS FLY INTO THE SCREEN WITH TARGET MARKS OVER THEIR CROTCHES, AND YOUR GOAL IS TO MOVE THE CROSSHAIRS AND FIRE SPERM INTO THEM. I swear on my honor as a 5-year GAF member that I am NOT MAKING THIS UP.
Also, the video sequences are in full 16:9 widescreen and are compressed at 60 frames per second progressive -- really, really good-looking UMD.