Bubble Sort: Merge Puzzle

Every bubble holds a picture. Which ones belong together?
Merge them, pop 4 of a kind and clear the jar.
Bubble Sort is a merge puzzle with a brain-teaser twist: the sorting happens in your head.
🫧 HOW TO PLAY
• Drag a bubble onto another bubble from the same group
• Collect 4 matching pictures in one bubble and it pops
• Clear the whole jar before you run out of moves
🧠 A SORT PUZZLE THAT M
AKES YOU THINK
Sweets, flowers and butterflies are easy. But "Floats on water"? "Fits in your pocket"? "It might bite"? Some
pictures could belong to several groups, and every wrong merge costs a move. Each level is a tiny riddle
about how things go together, so this picture puzzle trains your logic while you relax.
✨ FEEL THE SQUISH
Bubbles bounce, wobble and pile up with real physics. Grab one, drag it around and watch the others make
room. Every merge is a satisfying squish, every pop a little celebration.
♾ ENDLESS LEVELS
Levels are generated fresh, so no two puzzles are alike. Difficulty ramps up gently, with Hard and Extreme
challenges waiting every few levels. Stuck? The Lightbulb reveals a pair, the Magnet turns a bubble into the
picture you need, and Extra Bubbles give you more to work with.
⚔ 1v1 DUELS
Take turns against a rival across 5 arenas. Merge smarter, score higher and send emojis to celebrate. Win 10
duels in an arena to unlock the next one.
🏆 WEEKLY LEAGUES
Earn cups in duels and climb from Bronze to Diamond. The top 10 get promoted, everyone else fights to stay.
🃏 CARD COLLECTIONS
Open booster packs, complete themed albums like Ancient World, hunt golden cards and unlock bonus
chests.
📅 EVENTS, TASKS & D
AILY REWARDS
A fresh calendar of levels every month with milestone gifts along the way. Plus daily tasks, a 28-day reward
calendar and a profile full of avatars, frames, emojis and trophies to unlock.
Whether you love merge games, sorting puzzles or a good brain teaser, Bubble Sort fits into a 2-minute break
and keeps your mind buzzing long after. Ready to sort things out? Download Bubble Sort and start popping!
Bubble Sort is free to download and play. Some in-game items can be purchased with real money.