Dont know why there are so many negative comments although the game is not explained well.
It seems to be a remake of the boardgame Mastermind
https://en.wikipedia.org/wiki/Mastermind_(board_game)
You have to guess which key belongs in which lock and in response you get how many keys you put correctly. Then you change the key positions according to the results.
i.e. if you got 0 correct you should change all key positions etc.

My problem is that the time limit for the later rounds is quite short which makes these rounds more luck than skill.

The game still works using the newgrounds player.
https://www.newgrounds.com/flash/player

the game does not work either

Yep everyone is correct. this game is craptastic in the most dumbshit way. ok i get the point is to unlock the underwear. but it doesn't tell you which colours you have gotten right. just how many.

Game bomb!

I agree with everyone else..don't make anymore games like this again.

Most absurd game i've seen or played, the developer needs to be more specific about what the point is. Hate to say this but this game sucks big time....pssttt developer please don't bother making such games again :p