Mattel's UNO Show 'em No MercyPhoto: Mattel
168 cards, with new action cardsPhoto: Mattel
Ruthless rounds for teens and adultsPhoto: Mattel
Draw cards stack all the way to +10Photo: Mattel
Reach 25 cards and you're knocked outPhoto: Mattel
Video

Card game

UNO Show 'em No Mercy

UNO with stacking, hand swaps, Wild Draw 10s and knockouts

Empty your handTake that

  • 2–6best with 3-5
  • 15–30 minper game
  • Under a minuteto set up
  • 7+years
  • Very easy
  • Nonereading

The official listing, on Amazon.in

Imported
Buy on Amazon.in

We couldn't confirm whether this listing sends the Indian or the imported box. Amazon shows today's price, the seller and delivery.

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The game in a nutshell

UNO Show 'em No Mercy is Mattel's harshest UNO: a 168-card deck where draw cards stack all the way up to Wild Draw 10, 0s and 7s swap hands, and anyone holding 25 cards is knocked out. It suits teenagers, cousins and adults who already love UNO and want louder, more ruthless rounds, for ages 7 and up. Our link goes to Mattel's own No Mercy box.

Is UNO Show 'em No Mercy right for you?

Great if

  • Teenagers and adults who find classic UNO too tame
  • Noisy evenings with cousins at Diwali or a family get-together, when everyone already knows UNO
  • Quick, dramatic hands: a round can end suddenly when players get knocked out
  • A small gift for an UNO-loving friend; the pack fits easily in a bag for trips

Skip it if

  • Someone at your table hates being ganged up on: piling draw cards on one player and swapping hands are the whole point
  • You're playing with young children who get upset when they lose; reviewers suggest calmer games for short tempers
  • You want a game where your choices matter more than the luck of the draw

A place on the honours list

Good company to be in.

Recognition from beyond our table.

Toy of the Year (TOTY) Awards, Game of the Year (The Toy Association, USA), 2025 (Finalist)

How UNO Show 'em No Mercy plays

Set-up is the same as classic UNO. Shuffle the 168 cards, deal seven to each player and turn one over to start the discard pile; if it's an action card, set it aside and turn over another.

  • Time to teach: about 10 minutes (less if everyone knows UNO).
  • Reading and language: The cards work with colours, numbers and symbols, so nobody needs to read during play. Only Mattel's rule sheet has text, in English. Anyone who knows classic UNO can explain the new cards in Hindi or any language at the table.
Ruthless rounds for teens and adults · Photo: Mattel

How to Play UNO No Mercy: Prepare for CARD CHAOS! · Game Rules

If this creator doesn’t allow embedded playback, watch on YouTube ↗.

Your turn, step by step

  1. 1
    Match

    Play a card that matches the top card by colour, number or symbol. If you can't, keep drawing until you can, then play that card.

  2. 2
    Stack

    Hit by a draw card? Answer with one of equal or higher value to pass the growing total on; if you can't, you draw the lot.

  3. 3
    Swap

    A 0 makes everyone pass their hand along; a 7 makes you swap hands with a player of your choice.

  4. 4
    Win

    Play your last card, or be the last player left after everyone else has hit 25 cards and been knocked out.

Read the official rules (PDF)UNO Show 'em No Mercy instruction sheet (Mattel item HWV18, 168 cards) · English
The full explanation: how a game of UNO Show 'em No Mercy goes

On your turn, match the top card by colour, number or symbol. The first big change: if you can't play, you keep drawing until you find a card you can play, and then you must play it. In classic UNO you draw just one card.

Draw cards stack. When someone hits you with a Draw Two, Draw Four, Wild Draw 6 or Wild Draw 10, you can answer with a draw card of equal or higher value, and the total passes to the next player; whoever can't answer picks up the whole lot. The other new cards are just as rough. Skip Everyone gives you another turn, Discard All lets you throw away every card of its colour, Wild Reverse Draw 4 turns play around and hits the player who is now next, and Wild Color Roulette makes the next player name a colour and turn over cards until that colour appears, keeping every card they turned. A 0 makes everyone pass their hand along, and a 7 makes you swap hands with a player of your choice.

You win a hand by playing your last card (shout 'UNO' when you're down to one, or draw two if someone catches you), or by being the last player left: anyone who reaches 25 cards is knocked out under the Mercy Rule. Mattel's optional scoring plays to 1,000 points, with a 250-point bonus for every player you knock out.

Tip: save your Wild Draw 6 and Wild Draw 10 for when someone stacks on you, so you can send a big pile onwards instead of picking it up. With younger players, many families play single hands rather than going for 1,000 points.

What's in the box

168 cards, with new action cards · Photo: Mattel
  • 80Number cards
    20 in each of the four colours: two each of 0 to 9
  • 12Draw Two cards
    three per colour
  • 12Skip cards
    three per colour
  • 12Reverse cards
    three per colour
  • 12Discard All cards
    three per colour; throw away every card of that colour
  • 8Draw Four cards
    two per colour (coloured, not Wild)
  • 8Skip Everyone cards
    two per colour
  • 8Wild Reverse Draw 4 cards
  • 8Wild Color Roulette cards
  • 4Wild Draw 6 cards
  • 4Wild Draw 10 cards
  • 1Instruction sheet
    English

Box: 11.5 × 9 × 4 cm, 0.24 kg. Handy to know for gifting and travel.

Mattel lists 168 cards and instructions for item HWV18. The split by card type comes from a published rules guide and adds up to 168; Mattel's rule sheet names every card but doesn't print the counts. The Wild cards are all attack cards: the guide lists no plain Wild. Mattel's US, Canadian and Indian listings for HWV18 all describe the same 168-card deck.

Where to buy

Amazon.inEdition not confirmed

The official listing, on Amazon.in

We couldn't confirm whether this listing sends the Indian or the imported box. Amazon shows today's price, the seller and delivery.

Buy on Amazon.in

Opens Amazon.in in a new tab.

In India, UNO Show 'em No Mercy is sold under the name of Mattel's Indian company, Mattel Toys (I) Pvt. Ltd., Mumbai. Mattel doesn't say where the packs sold here are made, and store listings disagree, so we couldn't confirm it; check the label if it matters to you. It's the same 168-card Mattel game either way. Our Amazon.in link goes to Mattel's own No Mercy box.

How to make sure you get a genuine copyA little care before you click.
  • Look for the Mattel Games and UNO logos on the pack, and a label naming Mattel Toys (I) Pvt. Ltd., Mumbai. An Indian store listing names this company as manufacturer/importer for item HWV18.
  • Check for the ISI mark and a BIS licence number; toys sold in India must carry it.
  • Count the deck: Mattel's No Mercy has 168 cards, including Wild Draw 10, Wild Draw 6, Wild Color Roulette, Wild Reverse Draw 4, Discard All and Skip Everyone cards.
  • The rule sheet should be Mattel's, marked (c)2023 Mattel with item HWV18, and cover stacking, the 0 and 7 hand swaps and the Mercy Rule at 25 cards.
  • Be wary of decks sold as 'No Mercy cards', 'foreign trade' or 'English version' without the Mattel name, or listings whose product details name a different company as manufacturer.

We link to one Amazon.in listing that we've checked against the maker's own information. We don't show prices: Amazon shows today's price, the seller and delivery. Paid link. We may earn a commission, at no extra cost to you.

What reviewers and players say

Reviewers describe No Mercy as UNO with the brakes taken off. The Toy Insider calls it 'short on the mercy and heavy on the fun', and singles out the stacking rule, the hand swaps on 0s and 7s and the Mercy Rule as what makes it wilder than the original. The same review warns that it is ruthless, so children with short tempers may do better with a calmer game. Rules guides show how a stack of draw cards can hand one player a big pile at once, and they differ on details such as what can be stacked on what, so it's worth agreeing house rules before you start. It was a finalist for Game of the Year in the US Toy of the Year awards for 2025.

What people love

  • Stacking draw cards, so a +2 can snowball into a +20 for the unlucky player who can't answer
  • Hand swaps on 0s and 7s, which can turn a hand around in one go
  • The Mercy Rule: knockouts at 25 cards add tension and can end a hand fast
  • Plenty of new surprises for groups who know classic UNO by heart

Common complaints

  • Ruthless by design: players who hate being ganged up on, or children with short tempers, may not enjoy it
  • Rules guides disagree on stacking details, so groups need to settle house rules first
  • Luck of the draw still decides most hands
Based on 5 reviews and discussions

Summarised in our own words from the sources above. We don't use Amazon reviews or ratings.

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Best with3-54-64-64-5
Play time15–30 min10–30 min10–30 min15–20 min
Age7+7+7+7+
RulesEasyEasyEasyEasy
Indian editionImportImportImportYes
Why look at itThis pageMattel's other big UNO twist: double-sided cards and a harsher Dark Side, but no stackingThe classic 112-card original: draw one card when stuck, no stacking, no hand swaps, no knockoutsAnother quick take-that card game where one bad draw can knock you out

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Questions people ask about UNO Show 'em No Mercy

What is the difference between UNO and UNO No Mercy?

No Mercy has 168 cards instead of 112, with new cards such as Skip Everyone, Discard All, Wild Draw 6, Wild Draw 10 and Wild Color Roulette. Draw cards can be stacked, 0s and 7s swap hands, you keep drawing until you can play, and anyone holding 25 or more cards is knocked out. Classic UNO has none of these rules.

Can you stack +2 and +4 cards in UNO No Mercy?

Yes. Mattel's rules let you answer a draw card with one of equal or higher value from your hand, so a +2 can be met with a +2, +4, +6 or +10. The total keeps growing until someone can't add to it, and that player draws the whole pile and misses their turn.

What is the Mercy Rule in UNO No Mercy?

If you ever hold 25 or more cards, you're knocked out of the hand, and your cards are set aside until the draw pile runs out and is reshuffled. The last player left wins the hand, even without emptying their own.

How many players can play UNO No Mercy, and what age is it for?

Mattel rates it for ages 7 and up. Retail listings give 2 to 6 players; some rules sites say more can play, but hands get long with a big group. Seven cards are dealt to each player, as in classic UNO.

Is UNO No Mercy made in India?

We couldn't confirm it. Mattel doesn't say where the No Mercy packs sold in India are made, and store listings disagree. What we do know is that Mattel's Indian company, Mattel Toys (I) Pvt. Ltd., Mumbai, sells it here. Check the country of origin and the ISI mark printed on the pack. Our link goes to Mattel's own box.

Game facts

Publisher
Mattel (Mattel Games)
In India
Mattel Toys (I) Pvt. Ltd., Mumbai (named as manufacturer/importer on an Indian store listing)
First published
2023
Players
2–6
Barcode
194735220809
Language
No reading – The cards work with colours, numbers and symbols, so nobody needs to read during play. Only Mattel's rule sheet has text, in English. Anyone who knows classic UNO can explain the new cards in Hindi or any language at the table.
Box size and weight
11.5 × 9 × 4 cm, 0.24 kg
Awards
Toy of the Year (TOTY) Awards, Game of the Year (The Toy Association, USA), 2025 (Finalist)
Sources & photo creditsThe references behind this guide.

Facts on this page come from the publisher, the Indian maker or distributor, and the sources below. Photos are credited under each one.