Built by Zerg AI

One snippet of code.
Branded mini-game.

Drop a Flappy Bird-style easter egg into your 404 page, loading screen, or product surface. Custom icon. Custom colors. Per-domain leaderboard. No backend to run.

Configuration

Shown on the score-card footer.
SVG or PNG, 1:1 ratio renders best. Used as the player sprite.
Each domain gets its own isolated leaderboard. Defaults to location.hostname if omitted. Auto-verified server-side via the browser Origin header — you can't squat on someone else's domain.

Live preview

Updates as you edit configuration. ↗ Open full-size

Snippet


  








  

    
🚧

    
404 pages that delight

    
Turn dead URLs into a brand moment. Visitors hit your 404, stay 90 seconds, leave smiling.

  

  

    
⏳

    
Loading screens that don't feel like loading

    
Long async operations? Trigger Flappy on demand and your users won't notice the wait.

  

  

    
🤖

    
Built for an AI-agent world

    
Every embed exposes window.flappyZerg — agents can play your branded game programmatically.

  






  
📡 Subscribe to game events

  

    
window.flap.on('game_over', e => {
  console.log('player scored', e.score, 'on seed', e.seed);
  // chain UX off it: dismiss a loading screen, fire your own analytics,
  // award a discount code, post to Slack, etc.
});

// Available event types:
//   game_start  { seed, skin, mode, daily }
//   score       { score, multiplier }
//   powerup     { key, name, effect }
//   game_over   { score, seed, skin, duration, powerups[], daily, beat_challenge }
// Use '*' to subscribe to all of them.