Build words and score points before your letter reserves run out. Longer words earn more. Full-row words auto-clear and earn a big bonus.

Five columns of bubbles rise from below. Each column draws from a finite reserve.

Drag through touching bubbles to spell a word. Words must be 3 letters or longer. You can trace in any direction: across, up and down, and diagonally.

Tracing a word clears those bubbles. Everything below them floats up to fill the space, and fresh letters rise in from the chambers underneath.

Rarer letters are worth more, but length matters most. Four letters score at face value, five letters double it, six letters triple it, and every letter after that adds another multiple. There is no ceiling.

Three-letter words are allowed, but they score almost nothing. Use them to clear space, not to score.

Score big with a full row. Line up all five bubbles in any row to spell a word and it clears on its own for a ×7 bonus.

Sometimes the letters you need are not touching. Popping clears a single bubble and floats everything below it up one space, which lets you shift letters into place.

Press and hold any bubble until it swells, then lift to pop it. Changed your mind? Drag away before you lift and nothing happens.

Every pop pulls a fresh letter from the chamber below. Popping the top row costs nothing beyond that.

Popping below the first row does cost one extra letter from your unseen reserve. You will see which letter you lost as it enters the chamber and quickly bursts.

When the reserve empties, a fifteen-second countdown begins. Keep tracing, because any remaining words still score. When the countdown finishes, the round is complete.