Publisher: Active Software
This is a quiz game hosted by a dwarf in a Santa costume. The name is a pun, of course: "San", to mean three, portmanteau'd into Santa-kun. The questions in this game revolve around computers and consoles. You are asked a series of 25 multiple-choice questions, with a girl stripping at every ten questions you get right. If you get a perfect score, you see her naked. Naturally, you need to know Japanese in order to see boobies in this game, or just get extremely lucky with your guesses. This was actually a prequel to Quiz Bancho.