
Go for the Perfect
Clear every block for a Perfect bonus, then try to keep the streak going.
Tap groups of connected same-color blocks to clear them. Every block you clear flows into the core at the center and changes its color. Using the core's color wisely is the key to a Perfect. No timer and no rush — think it through at your own pace. No sign-up and no in-app purchases, so you can start right away.
Tap connected blocks of the same color to clear them all at once.
Cleared blocks gather at the center tile and change its color.
Clear 95% or more of the board to complete the stage. Clear it all for a "PERFECT" bonus.

Clear every block for a Perfect bonus, then try to keep the streak going.

Every 5 stages, a special stage of only gold, silver and bronze blocks appears. Score is doubled.

From stage 31. Tap to cycle its color; once pulled into the core, it sucks in the blocks around it. The area it clears is outlined on the board.

Get a Perfect on the max 11×11 board and the next stage shrinks — down to 7×7 for efficient scores.

Boards up to 7×7 with at most 4 colors, and 90% clears the stage. Great for a relaxed session.

Show a number on each block matching its color, so colors are easy to tell apart.
The rules are simple, but where you start makes all the difference. Think ahead, plan, and decide — a quick mental workout that fits into any spare moment.
Which group should go first so a bigger one forms next? The more you plan your order, the higher you score.
Every block you clear changes the core's color. Decide which color to gather there and work backward from the goal.
Undo your last move, or reshuffle right at the start? Choosing when to spend your limited reshuffles is part of the skill.
Each stage takes just tens of seconds — perfect for a commute or a short break.
Yes, the whole game is free to play. It shows ads, but there are no in-app purchases and no sign-up.
You think ahead and plan the order of your moves as you play, so it makes a fun mental workout. There's no time limit, so you can play at your own pace.
Yes. You only need to tap, and there's no time limit. Easy mode uses smaller boards and fewer colors, so it's easy to get started even if you're new to puzzles.
Try Easy mode. You can also reshuffle the board right at the start of a stage, or undo your last move.
Turn on color numbers with "TEXT ON/OFF" on the title screen, or the "1" button at the bottom of the game screen.
Yes. Your progress is saved automatically and you can resume with Continue. Data is stored only on your device.