Drag to aim, release to fire. Match 3 of a color to pop them. Miss too many and a new row drops in. Keep the bubbles above the line.
Every last bubble. You made that look easy.
Aim with your mouse or finger. Click, tap, or press space to fire. Match 3 or more of the same color to pop them. Miss too many shots and a new row drops in. Do not let the bubbles cross the line.