Each level is a puzzle that needs solving, so one completed puzzle means one completed level. Your current level is indicated by a number in the bottom left corner of the puzzle.

There are four types of levels: usual, animated, special, and rare. Special, animated, and rare levels are marked with a label in the top right corner, while usual levels have no labels. Once an animated level is completed, a unique animation will be displayed. When completing a special level, you can enjoy a variety of effects. Rare levels are more difficult to complete or selected as Editor's Choice.