Menko from Wikipedia:
Menko (めんこ, 面子) is a Japanese card game played by two or more players. It is also the name of the type of cards used to play this game. Each player uses Menko cards made from thick paper or cardboard, with one or both side printed with images from anime, manga, etc. A player's card is placed on the hardwood or concrete floor and the other player throws down his card, trying to flip the other player's card with a gust of wind or by striking his card against the other card. If he succeeds, he takes both cards. The player who takes all the cards, or the one with the most cards at the game's end, wins the game.