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UNO Showdown is a matching-card UNO game with an electronic, timed face-off: when a marked card is played, two players load cards into a unit and press their paddles after its signal. The player the cards flip toward takes them. This guide covers Mattel’s GMX56 edition, listed for ages 7 and up and 2–10 players.
What makes UNO Showdown different?
The basic game still uses UNO’s familiar matching rules: play a card that matches the top discard by number, color, or symbol, or use an appropriate special card. GMX56 adds an electronic Showdown unit that creates a head-to-head card-flipping contest during play.
Mattel identifies GMX56 as UNO Showdown Supercharged, a 2020 release with its own unit design and sounds. Details below refer to that edition; another UNO Showdown product may have different components or instructions. Mattel’s GMX56 product listing and its English instruction sheet provide the edition-specific details.
How does a Showdown work?
- Play a card with the Showdown icon. The player who played it faces the next player in the current order of play.
- Load the cards. The two players take the number of cards shown on the icon from the Draw pile and slide them face down beneath the unit’s tabs.
- Get ready at the paddles. Each player places a hand on a paddle. The unit gives a countdown with red lights and tones.
- Press on the green signal. When the light flashes green, both players press. The cards flip toward one player; that player adds them to their hand.
What does Wild Showdown do?
With a Wild Showdown card, the player chooses an opponent instead of automatically facing the next player, selects one to three cards for the face-off, and chooses the color that continues play. The manual says it may be played even if the player has another playable card.
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- Experience UNO Showdown it's the UNO game everyone already loves but with unexpected excitement from the Showdown unit!
- Be ready when the UNO Showdown unit signals, it's time to pull off a speedy reaction and push the pedal so cards go flying at opponents! Everybody duck!
- As in classic UNO , players race to get rid of all their cards by matching a card in their hand with the current card shown on the top of the discard pile.
- When players are down to one card, they must remember to yell "UNO!"
- Surprise-filled fun for family game night accommodates 2 to 10 players ages 7 years and older.
What comes in the GMX56 game, and how do you set it up?
Mattel’s instructions list 112 cards and one UNO Showdown Supercharged unit. Deal seven cards to each player, put the remaining cards in a Draw pile, and turn one card face up to start the Discard pile. Place the unit where the players can reach it.
The unit needs three AAA alkaline batteries, which are not included. Mattel’s instructions say to install them with a Phillips screwdriver; its support listing recommends alkaline batteries for its products.
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- Enjoy UNO Showdown, the UNO game that everyone loves - now with the whole emotion of the showdown unit!
- Keep Your Eyes Well Open: When the UNO showdown unit gives the signal, you need to react quickly to press the lever and throw the cards at your opponents. Bend!
- As in the classic UNO game, players must try to keep cards in their hand by playing cards that match the last card of the throw stack.
- If you only have one card in your hand, you must scream UNO!
- Fun full of surprises for family game evenings - for 2 to 10 players over 7 years.
How do you win a round, and how does scoring work?
Call “UNO” when you have one card left. If another player catches you before the next player begins their turn, you draw two cards. The first player to get rid of all their cards wins the round and scores for the cards left in opponents’ hands:
| Card left in an opponent’s hand | Points |
|---|---|
| Number card | Face value |
| Draw Two, Reverse, or Skip | 20 each |
| Wild or Wild Draw Four | 50 each |
| Wild Showdown | 40 |
The GMX56 instructions set the overall objective at 500 points. The round winner adds the applicable card values from opponents’ hands to their score.
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- This exclusive version of UNO Showdown Supercharged has a design and sounds that are unique to this edition.
- Experience UNO Showdown Supercharged -it's the UNO game everyone already loves but with unexpected excitement from the Showdown Supercharged unit!
- Be ready -when the UNO Showdown Supercharged unit signals, it's time to pull off a speedy reaction and push the pedal so cards go flying at opponents! Everybody duck!
- As in classic UNO, players race to get rid of all their cards by matching a card in their hand with the current card shown on the top of the discard pile.
Who is UNO Showdown for?
Mattel lists GMX56 for ages 7 and up and 2–10 players. Those are the manufacturer’s stated specifications. The distinctive extra interaction is the timed contest, so the edition suits players who want to keep UNO’s matching-card format while adding a physical face-off. The manual warns: “Do not aim at eyes or face,” and also says not to fire at point-blank range.
Quick Recap
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- Host an unforgettable UNO tournament at home with 3 full decks of premium cards featuring striking gold finishes. Designed for head-to-head competition, it’s an all-in-one set built for big group play.
- Includes everything needed to run the ultimate UNO Tournament—from gameplay to scoring—so players can focus on competing and claiming victory!
- Multiple special rules change each round, adding fresh twists that keep the game unpredictable and players on their toes.
- Track rankings with 2 erasable Leaderboards and dry-erase markers, and progress as players advance through rounds, building toward an exciting final showdown!
- Crown the ultimate UNO champion with a standout trophy—awarded at the end of the tournament to the top player after every round of play.
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- This version of the UNO Attack Mega Hit Launcher brings action, suspense and surprise with its sleek look, cool lights and sounds and high-shooting cards! Lights and sounds build over time for extra excitement!
- Load card into the shooter, then play like the classic UNO game, but watch out for the shooting cards when the Attack card comes up -- could be one card, could be five!
- Colorblind accessible! Special graphic symbols have been added to each card to help identify the color(s) on that card. This will allow players with ANY form of color blindness to easily play!
- Players must still yell 'UNO!' when they are down to just one card in their hand.
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