Double Bubble is a popular online casino game that boasts bright and bubbly graphics and big win potential. Developed by Gamesys, this slot game features five reels and 20 paylines, with wild symbols, scatters, and a bonus game where players can pop bubbles to uncover cash prizes. The Double Bubble symbol acts as a wild, substituting for all other symbols except for the bonus and scatter symbols. Three or more scatter symbols trigger the bonus game, where players select bubbles to reveal cash prizes that can add up to big payouts. With a fun and playful theme and the chance to win big, Double Bubble is a game enjoyed by many online casino players.