It's a "star-vortex tilt-and-match" puzzle. The board contains colored star tiles and fixed stone blocks. Players tap one of four directional icons at the bottom, causing all movable star tiles to slide simultaneously in that direction until stopped by a boundary, a stone block, or another tile. The faint symbol in each cell is a target shadow — the goal is to land every star tile on its matching target within a limited number of moves. Later levels introduce larger boards, more stone blocks, and tighter move limits, demanding careful planning of tilt sequences.
Tilt the board to slide star tiles onto their matching targets.