Players will put a card in front of another player and declare what critter is on the card, the recipient can either call out the player, or peek at the card and pass it to someone else and re-affirm or change what the critter is.

The game ends when a player has no cards to pass on his turn or when a player has four cards of the same critter on the table in front of him. In either case, this player loses and everyone else wins!