Lowest score wins.
A friendly guide to the game
Remember your cards, trade away high ones, and aim for the lowest score.
First things first
Each player gets 4 face-down cards. At the start of the round, pick 2 different cards of your own to peek at. Remember both their values and their positions!
Say card 1 is an 8♠ and card 3 is a 2♥. Keep that picture in mind. Press READY when you're done; your cards hide again.
The opening peek is timed, so take a quick look! The host chooses the number of rounds and whether to use 1 or 2 decks, with Jokers.
Your turn
On your turn, you can take the face-up top discard or draw a mystery card from the deck.
Tap the discard pile, then choose one of your cards to replace. Your old card goes face-up on the pile.
Example: Take a visible A♣ and swap it for the 8♠ you remember. The 8♠ becomes the new top discard.
Press DRAW. Only you see the drawn card. Choose one of your cards to replace, or press DISCARD DRAWN to put it face-up on the pile instead.
Example: Draw a 3♣ and swap it for your known 8♠. If you don't want the 3♣, discard it instead.
After either swap or discarding your draw, it's still your turn: press END TURN to pass, or call BOYO if it's available.
A little help
When you draw from the deck, these cards offer optional powers. A card taken from the discard pile does not give a power.
Pick one of your own cards to look at. For example, check your second card and discover it's a 9. Remember where it is!
Choose another player, then one of their cards. Say you peek at Maya's third card and see a 4; it hides again, so remember it.
Pick one of your cards, then one of another player's. For example, trade your known 8 for Maya's second card. The swap doesn't reveal either card.
Draw a K♠ and you could peek at your card, peek at Maya's, then blind swap. You may use each power once, in any combination, or skip them. A red King has no power.
Use powers before deciding what to do with the drawn card. You still need to swap it into your hand or discard it. You may use a power and then discard the draw; swapping or discarding it skips any powers left unused.
Keep an eye on the pile
During play, even on someone else's turn, press TAP and pick one of your cards if you think its rank matches the top discard. The suit doesn't matter.
The pile shows 8♥ and your chosen card is 8♠? It goes onto the pile and leaves your hand.
If your chosen card is a 7♣ instead, it stays in your hand and you normally receive one unseen penalty card.
Watch the current top card: it can change! If there are no drawable or recyclable cards left, a penalty card cannot be added.
Ready to wrap up?
Think your hand is low? On your turn, call BOYO before drawing or after completing your swap or discard. You can't call while a drawn card is still waiting for your decision.
In a 3-player game, you call BOYO. Your turn ends, then each of the other two players gets one final turn. After that, everyone's cards are revealed.
BOYO can be called only once per round. You can still TAP during the final turns.
The reveal
At the reveal, add the values of the cards still in your hand. Negative points are good!
Example: Red King (−2) + Joker (−1) + Ace (1) + 3 = 1 point.
Round scores are added together. After the chosen number of rounds, the lowest total score wins; a tie shares the win.