I'm the Mekuri Master, the Skirt-Flip King. The name isn't their idea... It's mine. I'm a man who was born to lift skirts. You think any so-called "rules" are gonna stop me? When classes get out, I race through the corridors like a fearsome wind, flipping, flipping, flipping up girls' skirts and letting the whole world know that I am the Mekuri Master!
Only in Japan, you say? (Or possibly Scotland.)
At any rate, click and drag the girls' skirts upwards as the "Mekuri Master" passes by. There's more explanation of the scoring, bonus rounds, etc. on the page -- scroll down to see it. Or you could watch this YouTube clip. Click here or on the picture to start. (If you want to play again after finishing the game, just click on the ending screen.)
Warning: Apart from the content (no nudity, but doubtlessly offensive to some), there's music and sound effects, both of which you can mute with buttons at the bottom right (marked with a speaker cone and the letters "BSG" respectively).