Best for
Parents, teachers, or developers who need a browser memory matching game with card-flip animations
Stack
A ready-made Kids Memory Game UI you can fork, run, and customize with the prompt pack below.
What's actually inside
The honest engineer's breakdown — what the Kids Memory Gametemplate does, how it's wired, and where it's opinionated.
The Kids Memory Game template is a classic emoji card-matching game that lives entirely in the browser. A responsive GameBoard renders a CSS grid of MemoryCard components — 4×4 by default — each showing a question-mark back until clicked. Framer Motion's rotateY transform gives each card a convincing 3D flip; the MatchChecker useEffect watches for two flipped cards, marks them matched if their emoji pair matches, or waits 800ms before flipping both back. The whole state machine is lean: flippedCards, matchedCards, and a moves counter tracked in useState, no global store needed.
The EmojiLibrary is a plain array of pairs that gets shuffled on mount — it's the first thing you'll want to edit. GameBoard shuffles and slices the array to the correct pair count for the chosen grid, so swapping in your own theme (vehicles, flags, food) is a one-line change. ScoreTracker shows moves taken and pairs found above the board, and GameOverModal (shadcn/ui Dialog) fires when all pairs are matched, offering a restart button and an optional WinConfetti burst via canvas-confetti.
Honest caveat: the 800ms flip-back delay was tuned for adults; young children need more time to read and remember cards. The template doesn't persist scores across sessions or support multiple players — for any of those you'll need the Supabase prompt from the pack below. Mobile support is decent (touch events work), but the default card size may be too small for small fingers on a 375px phone — the first quick prompt fixes that.
Key UI components
GameBoardCSS grid container rendering the full set of MemoryCard components in a 4×4 (or variable) layout
MemoryCardIndividual card with front (emoji) and back (?) face; flipped state controlled by parent
CardFlipperFramer Motion rotateY animation producing the 3D perspective card flip effect
MatchCheckeruseEffect watching flippedCards; marks matched pairs or flips back after 800ms delay
EmojiLibraryArray of emoji pairs (animals, fruits, etc.) used to populate and shuffle the board
ScoreTrackerDisplays moves taken and matched pair count above the GameBoard
GameOverModalshadcn/ui Dialog shown on win with congratulations message and restart button
WinConfetticanvas-confetti burst triggered when all pairs are matched
Libraries it leans on
framer-motionDrives the 3D rotateY card flip animation on MemoryCard
shadcn/uiDialog for GameOverModal, Button for restart and difficulty controls
canvas-confettiOptional confetti particle burst on game completion
Fork it and get it running
Forking takes about 5 minutes. You'll need a v0.dev account (free tier works) and optionally a Vercel account for a shareable URL.
Fork the template on v0.dev
Open https://v0.dev/chat/community/Tmi0y0iPzxv in your browser. Click the 'Fork' button in the top-right area of the community page to copy the template into your own V0 project. You'll land in the V0 editor with the full game code loaded and ready to preview.
Tip: No V0 credits are consumed by forking — only by AI chat edits.
You should see: The V0 editor opens with the Kids Memory Game project; you can see the GameBoard in the Preview tab.
Verify the game in Preview
Click the Preview tab in the V0 editor. Click a card — it should flip with a 3D animation revealing an emoji. Click a second card. If the pair matches, both cards stay face-up; if not, they flip back after a short delay. Play until all pairs are matched and confirm the GameOverModal appears with a restart button.
Tip: If the flip animation looks jerky in V0 Preview, that's normal — it will be smooth after deployment.
You should see: Card flip animations work, match logic functions correctly, and the win modal appears on completion.
Customize emoji and card size with Design Mode
Press Option+D (Mac) to enter V0's Design Mode. Click any MemoryCard back to change its color, or adjust font sizes and background directly. This costs zero credits. To swap the emoji set, switch to the Code tab, find the EmojiLibrary array, and replace the emoji pairs with your chosen theme (animals, food, vehicles). Save with Cmd+S.
Tip: Paste the emoji directly into the array — no image files needed.
You should see: Your new emoji set appears on the cards when you reload Preview.
Publish to a live Vercel URL
Click the Share button (top-right area of the V0 editor), then open the Publish tab. Click 'Publish to Production'. V0 deploys to Vercel automatically — this takes 30-60 seconds. You'll receive a .vercel.app URL you can share immediately with kids, parents, or teachers.
Tip: The game runs fully client-side, so no environment variables are needed for the base template.
You should see: A live Vercel URL is ready; the game plays in any modern browser including mobile Safari.
Connect GitHub for future edits
In the V0 editor, click the Git panel icon. Connect your GitHub account and link the project to a new repository. V0 will auto-create a branch named v0/main-{hash} for each set of edits. This lets you pull the code into Cursor or your local editor to add features like sound effects via the Web Audio API without touching V0's chat interface.
Tip: Once connected, every V0 chat edit also commits to GitHub — giving you full version history.
You should see: A GitHub repository is created; the code is accessible at the v0/main-{hash} branch.
The prompt pack
Copy-paste these straight into v0's chat to customize the Kids Memory Gametemplate. Each one names this template's own components — no generic filler.
Change emoji set and card size for young children
Swaps in a kid-friendly animal emoji set and makes cards larger for easier touch targeting on small screens.
Replace the EmojiLibrary with 8 pairs of animal emojis: 🐶🐱🐭🐹🐰🦊🐻🐼. Change the GameBoard grid to 4 columns × 4 rows. Update each MemoryCard's minimum size to 80×80px using Tailwind classes so young children can tap them easily on a phone screen.
Add celebration confetti on win
Adds a visual celebration burst using canvas-confetti that plays the moment the last pair is matched.
Add a confetti burst when all pairs are matched. Install canvas-confetti and import it as a default import. In the win condition handler inside MatchChecker — triggered when matchedCards.length equals the total pair count — call confetti({ particleCount: 150, spread: 90, origin: { y: 0.6 } }). Fire the confetti just before the GameOverModal opens so both effects play together.Add difficulty selector with grid size options
Lets players choose the game size before starting, making the template suitable for different age groups.
Add a difficulty selector shown before the game starts. Display three large shadcn/ui Button components labeled Easy (3×4 grid, 6 pairs), Medium (4×4 grid, 8 pairs), and Hard (4×5 grid, 10 pairs). On selection, initialize the GameBoard with the correct number of pairs from EmojiLibrary and update the CSS grid-template-columns to match. Store the selected difficulty in useState and show it as a label above ScoreTracker during play.
Replace emoji with image cards from /public/cards/
Upgrades the card faces from text emoji to real images, making the game feel more polished for branded or educational deployments.
Replace emoji text in MemoryCard front faces with <Image> from next/image. Use 8 animal images stored in /public/cards/ (dog.png, cat.png, rabbit.png, bear.png, fox.png, hamster.png, mouse.png, panda.png). Each MemoryCard front face should render the corresponding image with object-fit cover and rounded corners. Keep the question mark on the card back. Adjust the CardFlipper container dimensions to maintain a consistent aspect ratio across all card images.
Add Supabase score leaderboard
Adds a persistent leaderboard backed by Supabase so players can compete across sessions and devices.
Add a global score leaderboard. After winning, display a name input inside GameOverModal below the congratulations message. On submit, call a Server Action that inserts { player_name: string, moves_taken: number, difficulty: string, completed_at: string } into a Supabase table named memory_scores. Configure the table with RLS: anonymous users can INSERT and SELECT but not UPDATE or DELETE. After inserting, re-fetch the top 10 scores for the current difficulty ordered by moves_taken ascending and display them as a list below the GameBoard. Use NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY environment variables set in the V0 Vars panel.Gotchas when you extend it
The failures people actually hit when they push this template past its defaults — and the exact fix for each.
Cards briefly show their front face before flipping back immediately when no match (no delay visible)Why: The 800ms delay before flipping non-matching cards is not applied correctly — both cards flip back on the same synchronous state update without waiting.
Fix: Use a setTimeout in MatchChecker to delay the flip-back. Add an isChecking ref to prevent the player from clicking a third card during the delay window.
Non-matching cards flip back immediately without showing the faces. In MatchChecker, add a ref isChecking to prevent new flips during match evaluation. Wrap the flip-back state update in setTimeout(() => { setFlippedCards([]); isChecking.current = false; }, 800) to give the player time to see the cards.Cannot find module 'canvas-confetti' or its corresponding type declarationsWhy: canvas-confetti ships JavaScript only; TypeScript projects also need the @types/canvas-confetti declaration package installed separately.
Fix: Add @types/canvas-confetti as a dev dependency. In the V0 chat, prompt to install it, or use the 'Fix with v0' button on the TypeScript build error.
TypeScript throws 'Cannot find module canvas-confetti' type error. Run: npm install --save-dev @types/canvas-confetti and ensure the import is written as: import confetti from 'canvas-confetti' (default import, not named).
Card flip animation shows a white flash or glitch during the rotate on SafariWhy: CSS 3D transforms on Safari require -webkit-backface-visibility and an explicit perspective on the parent container; without these, Safari partially renders both faces during the flip.
Fix: Add perspective: 1000px to the CardFlipper container element and backfaceVisibility: 'hidden' plus WebkitBackfaceVisibility: 'hidden' to both the front and back card face divs.
Card flip animation looks broken on Safari with a white flash during the flip. Add style={{ perspective: '1000px' }} to the CardFlipper container element and add { backfaceVisibility: 'hidden', WebkitBackfaceVisibility: 'hidden' } to both the front and back card face divs.Non-matching cards flip back too fast — young children can't read the emoji before they disappearWhy: The default 800ms delay was tuned for adults. Combined with the Framer Motion flip animation duration, the effective viewing window is under 500ms — too short for children.
Fix: Increase the MatchChecker delay to 1500ms and slow the Framer Motion card flip duration to 0.5s.
Increase the delay before non-matching cards flip back from 800ms to 1500ms in MatchChecker. Also slow the Framer Motion card flip duration from 0.3s to 0.5s so young children have time to see and remember the card.
Game state doesn't persist — refreshing the page resets the board and scoreWhy: All game state (flippedCards, matchedCards, moves) is held in React useState and lost on page reload. The template doesn't use localStorage or a database by default.
Fix: For casual play this is acceptable behavior. For persistent progress, use the Supabase leaderboard prompt from the prompt pack above, or save the serialized board state to localStorage in a useEffect.
Save in-progress game state to localStorage so a page refresh doesn't lose progress. In a useEffect, serialize { matchedCards, moves } to localStorage on each state change. On mount, read and rehydrate the state before shuffling — skip shuffle if a saved game exists.Template vs. custom — the honest call
A forked template gets you far, fast. Here's where it holds up, and where you'll outgrow it.
The template is enough when
- You need a working educational game for a classroom website or family app by end of day
- You want a copy-paste learning example of card-flip state management with Framer Motion
- You're building a branded matching game for a marketing campaign with custom image cards
- You need a quick interactive game element to embed in a landing page or internal tool
Go custom when
- You need progress saving across sessions — requires Supabase Auth plus a user table, not just a leaderboard
- You want timed competitive multiplayer mode — requires WebSockets or Supabase Realtime beyond the template's scope
- You need accessibility features like screen reader card announcements for visually impaired children
RapidDev customizes V0 game templates for real products — adding custom assets, difficulty progression, and parental controls ready for production.
Frequently asked questions
Is the Kids Memory Game template free to use?
Yes. Forking any v0.dev community template — including this one — is free. You need a free v0.dev account to fork, and a free Vercel account to deploy. No credits are consumed by forking itself; only AI chat prompts that modify the code consume credits.
Can I use this template commercially?
V0 community templates are generated with AI and are not subject to standard open-source licenses — you own the output of your fork. You can use this template in commercial products, client projects, and paid apps. If you add third-party packages like canvas-confetti, check their individual licenses (canvas-confetti is MIT).
Why does my fork break in V0 preview after I add canvas-confetti?
V0's esm.sh preview sandbox sometimes fails to load packages that haven't been registered in its CDN cache yet. If you see an import error for canvas-confetti in preview, click Share → Publish → Publish to Production and test on the live Vercel URL instead — the package will load correctly from npm in a real Next.js build.
How do I change the emoji to match my brand or school subject?
Open the V0 Code tab and find the EmojiLibrary array — it's a plain JavaScript array of emoji strings. Replace the values with your chosen emoji pairs. The board shuffle and MatchChecker logic uses array indices, so any even-numbered array of emoji pairs works without further changes.
How do I connect a database to save scores?
Use the Supabase leaderboard prompt from the prompt pack above. You'll need a Supabase project; create a memory_scores table, add your NEXT_PUBLIC_SUPABASE_URL and NEXT_PUBLIC_SUPABASE_ANON_KEY to the V0 Vars panel, and the Server Action handles the rest. Supabase's free tier supports this with no cost.
The card flip animation glitches on Safari — how do I fix it?
Safari requires explicit backface-visibility settings on 3D transforms. Add style={{ perspective: '1000px' }} to the CardFlipper container, and add { backfaceVisibility: 'hidden', WebkitBackfaceVisibility: 'hidden' } to both the card front and back face divs. Copy the fix_prompt from the gotchas section above directly into V0 chat.
Can RapidDev customize this template for my product?
Yes. RapidDev customizes V0 game templates for real products — adding custom card assets, difficulty progression, Supabase leaderboards, and parental controls. Reach out at rapidevelopers.com to discuss your use case.
Does the game work on mobile phones?
Yes — the template uses touch-friendly click events, not keyboard input, so it works on iOS and Android. The default card size (around 60px) may be too small for young children on a 375px phone; use the first quick prompt to increase the minimum card size to 80×80px for easier tapping.
Outgrowing the template?
RapidDev turns v0 prototypes into production apps — real auth, database, and payments — at $13K–$25K.
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