Overview
2-8 players may play. Each player picks a card from the deck, and the player drawing the highest-numbered card is the dealer. This person then deals 4 cards to each player, and places the remainder of the cards face down in the center of the table to form the draw pile. The player to the dealer's left starts the hand by playing a numbered card face up in the center of the table and announces the number. He must then immediately draw a new card from the draw pile. The next player then plays a numbered card on top of the first player's card and announces the total of these numbers added together. Play continues in this manner, with players continuously adding to the group "pot" until one person causes the total to meet or exceed 99. This person loses the hand.
Read more about this topic: O'NO 99