There is always a bigger fish! In the card game Piranhas, players play simultaneously and try to play out all of their cards. On each card are three fishes in different colors and sizes. In the beginning, one card lays on the table. Cards can be played on top of this card when they show a bigger fish in the same color as one of the fishes on the card on the table. Then there are piranha cards of different colors. They can be played when no fish of the same color is on the table. The feeding frenzy continues until one player has no more cards and wins!