Complete Rules & How to Play
Uno No Mercy (officially Uno Show 'Em No Mercy by Mattel) is the ruthless version of the classic Uno card game. With a 168-card deck featuring brutal action cards like +6, +10, Skip Everyone, Discard All, and Reverse Draw Two, this card game takes no prisoners. If you thought Uno was intense, No Mercy cranks it up to 11.
Be the first player to get rid of all your cards. When you play your second-to-last card, you must shout "UNO!". If another player catches you not saying it, you draw 4 cards as a penalty.
In tournament play, points are scored when a player goes out. The first player to reach 500 points wins the game.
The Uno No Mercy deck (officially Uno Show 'Em No Mercy) contains 168 cards — 60 more than the classic 108-card Uno deck. The deck composition includes:
To set up:
Uno Show 'Em No Mercy (commonly called Uno No Mercy) plays similarly to classic Uno but with more aggressive cards and official stacking. Play proceeds clockwise. On your turn, you must play a card that matches the color, number, or symbol of the top card on the discard pile. Alternatively, you can play a Wild card at any time.
If you cannot play a card, you must draw one card from the draw pile. If the drawn card can be played, you may play it immediately. Otherwise, your turn ends.
In Uno No Mercy, Draw cards can be stacked! If a +2 is played on you, you can play another +2 (or a +4, +6, or +10) to pass the penalty to the next player. The draw amounts accumulate. The player who cannot stack must draw the entire total.
If you suspect a player illegally played a Wild Draw Four (meaning they did have a card matching the current color), you can challenge them. The challenged player must show their hand privately. If the challenge is successful (they did have a matching card), the player who played the Wild +4 draws 4 cards instead. If the challenge fails, the challenger draws 6 cards total (4 + 2 penalty).
The deck includes number cards from 0 to 9 in four colors: Red, Yellow, Green, and Blue.
Uno No Mercy includes all classic action cards plus devastating new ones. Here is the complete list of action card meanings:
Wild cards can be played on any card regardless of color or number. Here are all the wild card meanings in Uno No Mercy:
Yes! Wild Draw cards can be stacked following the stacking hierarchy: +4 → +4/+6/+10, and +6 → +6/+10. The only card that cannot be stacked on top of is the Wild Draw Ten (+10). When stacking, the draw penalties accumulate, so the unlucky player who cannot stack may end up drawing 10, 16, or even 20+ cards.
Here is what makes Uno No Mercy different from the original:
When a player goes out, they score points for the cards remaining in opponents' hands:
First player to 500 points wins the match.
Q: Can you stack Draw cards in Uno No Mercy?
A: Yes! Stacking is an official rule in Uno No Mercy. You can stack +2, +4, +6, and +10 cards. The amounts accumulate and the player who cannot stack must draw the total. The only exception is +10, which cannot be stacked on top of.
Q: What happens if you forget to say Uno?
A: If you play your second-to-last card without saying "UNO!" and another player catches you before the next player takes their turn, you must draw 4 cards as a penalty.
Q: Can you play Discard All on any turn?
A: You can play a Discard All card when its color matches the current discard pile color. When you play it, you also discard all other cards in your hand that match that color.
Q: How is Uno No Mercy different from regular Uno?
A: Uno No Mercy adds brutal new cards (+6, +10, Skip Everyone, Discard All, Reverse Draw Two), makes stacking official, uses a larger 168-card deck, and creates much more intense gameplay with higher draw penalties.
Q: How many cards do you start with in Uno No Mercy?
A: Each player starts with 7 cards, same as classic Uno.
Q: How many cards are in Uno No Mercy?
A: Uno No Mercy (Uno Show 'Em No Mercy) contains 168 cards, compared to 108 in classic Uno. The deck includes 76 number cards (0–9 in four colors), 48 action cards (Skip, Reverse, Draw Two, Skip Everyone, Reverse Draw Two, Discard All), and 16 wild cards (Wild, Wild +4, Wild +6, Wild +10 — 4 of each). The larger deck means more chaotic gameplay and longer hands.
Q: How many people can play Uno No Mercy?
A: Uno No Mercy supports 2 to 10 players. The game works best with 4–6 players for maximum chaos, but it plays well at any count. With more players, the stacking chains and Skip Everyone card become even more impactful.
Q: Can you stack wild cards in Uno No Mercy?
A: Yes! In Uno No Mercy, you can stack Wild Draw cards. If someone plays a Wild +4 on you, you can respond with your own +4, +6, or +10. Wild +6 can be stacked with another +6 or a +10. The only exception is the Wild Draw Ten (+10) — it cannot be stacked on top of, so the next player must draw all accumulated cards.
Q: What does the 0 card do in Uno No Mercy?
A: In Uno No Mercy, when you play a 0 card, all players must pass their entire hand to the next player in the current direction of play. This hand-rotation rule is unique to No Mercy and can completely shake up the game — you might go from having 15 cards to just 2, or vice versa.
Q: What does the 7 with arrows mean in Uno No Mercy?
A: The 7 card with arrows in Uno No Mercy means you must swap your entire hand with another player of your choice. The arrows on the card indicate that hands are being exchanged. This is a powerful strategic tool — you can swap your large hand with someone who has only a few cards left.
Q: What is the Reverse Draw Two in Uno No Mercy?
A: The Reverse Draw Two is a No Mercy exclusive action card that has a double effect: it reverses the direction of play AND forces the next player (in the new direction) to draw 2 cards. It is essentially a Reverse and a Draw Two combined into one card. It comes in all four colors.
Q: When did Uno No Mercy come out?
A: Uno Show 'Em No Mercy was released by Mattel in 2023. It quickly became one of the most popular Uno variants due to its aggressive gameplay and viral presence on social media. It is available at major retailers including Amazon, Walmart, and Target.
Q: What is the difference between Uno No Mercy and Uno Flip?
A: Both are Uno variants but they play very differently. Uno Flip features a double-sided deck with a Light Side and a Dark Side — flipping the deck changes the game dramatically. Uno No Mercy focuses on extreme draw penalties (+6, +10), official stacking, and hand-swapping mechanics (0 and 7 cards). No Mercy is generally considered more aggressive, while Flip offers a unique strategic twist with its two-sided cards.
Q: Can you play Uno No Mercy online?
A: As of now, there is no official online version of Uno No Mercy. The standard Uno game is available on platforms like Ubisoft's UNO (PC, console, mobile), but it does not include No Mercy rules. You can play the physical card game in person or use video calls to play remotely with friends.
Q: What is the Uno No Mercy challenge rule?
A: The challenge rule applies to the Wild Draw Four card. If you suspect the player who played a Wild +4 actually had a card matching the current color (making the play illegal), you can challenge them. They must show you their hand privately. If the challenge is successful (they had a matching card), they draw 4 cards instead of you. If the challenge fails, you draw 6 cards total (the original 4 plus a 2-card penalty).
Q: Is Uno Show 'Em No Mercy the same as Uno No Mercy?
A: Yes! Uno Show 'Em No Mercy is the official product name used by Mattel, while Uno No Mercy is the commonly used shorthand. They refer to the exact same card game. You may also see it called "UNO Show Em No Mercy" (without the apostrophe) — it's all the same game with the same 168-card deck and rules.
Q: Where can I find Uno No Mercy rules in PDF?
A: You can view and print a clean version of the complete Uno No Mercy rules on our printable rules page. This print-friendly format is perfect for having a reference sheet during game night — just open the page, press Ctrl+P (or Cmd+P on Mac), and print or save as PDF.