The subtitle "Die Maus (the mouse)" is from a children TV series. The mouse is only on the cover and on each side of the cards, therefore not really part of the game play. There are 5 round cards, with each 16 different images on both sides. The images are from different categories (animals, fruits, clothing, vehicles, ...) These 5 cards are placed in the middle of the table. The player who finds first the image which is on all 5 cards (allways exact 1) gets a chip of his choice. The 5 cards are new placed (turning some of the cards) and a new round starts. If a player has 4 equal chips he wins the game.