It's a borrowing race, I think. You have to click on the person with the item mentioned in the word balloon. Which is random, and disappears pretty quickly. So you more or less have to be able to read Japanese to play it.
Finally, After many tries I found the Nude girl You need to get over 2000 points in the first 3 tries to go to a 4th, in whih you have 1.5 seconds or something to find a nude girl >.O And you still see nothing, she hold her breasts all embarressed.
No you do see some nipples before she covers but just for a part of a second.. But i still don't get it - if she is nude and angry and has stopped looking for stuff it means i won?