The Mouse shows how things work or what one needs to do some things, players try to find the necessary things. Each player draws a mouse card face down, they are turned up simultaneously. All players try to find the corresponding thing cards, but must look forst for those that belong to other players’ mouse cards. When all cards of the round are found, players get the mouse cards fitting to the thing card(s) they collected from the other players. Who has the most mouse cards at the end wins the game.