Swipe the 5x5 board and every tile slides at once. Two tiles of the same colour and the same level merge into one tile of the next level. Get cyan, magenta and yellow sitting side by side along the line you just swiped, all three at the same level, and the trio pops for points.
Higher-level tiles are worth far more, and every extra pop in a single swipe multiplies the reward, so a well-set board can pay out several times over in one move. When space runs short, spend a wash drop to scrub any tile away, then earn charges back by popping upgraded tiles.
Pick the calm Normal pace or the faster Hard mode, chase eight achievements, and push your best run onto the leaderboard.