Possibly not the actual name of the game, but since it's all in Japanese, who knows (or cares)? The object is to prevent people from committing suicide by killing them with a bow and arrow before they can plummet to the ground, jumping out of a four story building. I like to think that this game is set a Sega's corporate office. Shoot as many people as you can in 60 seconds, you get one point for each kill, you lose one point for each missed jumper, and your tally is multiplied by your accuracy rating to compute your final score. In the first stage, jumpers come off the top of the roof, in later stages they come out of lower windows to, and in the fifth stage they come two at a time. If there's a sixth stage, I haven't reached it yet.
http://ikiki.sokushinbutsu.com/himoji/game.htm (Download the second link from the top that says "Version 1.01")
52 is my best score so far. Come waste 5 minutes of your time and try to beat me.