Undress a Girl is a skill game in which you try to undress one girl by catching beers. You can first select your favorite girl from three candidates. Then when the game starts, numerous bottles of beers will be falling down in the screen. You must use your mouse to move a beer box and ensure that all the bottles fall inside the box. The sexy girl you have selected will stand beside you and watch your performance. Every time you catch twenty bottles of beer, the girl will take off one of her clothes. But once you miss three bottles of beer in total, the game is over.