Core gameplay
Blocks fall in layers of two different colours. A line clears only when all cells in that row contain the same colour. You may swap the falling block with the next one before placement.

Level and content structure
Eighty fixed puzzles. Each puzzle has a target number of rows to clear. No infinite endless mode is included.

Visual and user experience
Clean rectangular shapes with small rounded corners. The falling speed is constant across all puzzles. Screen elements stay within a centred game area.

Features
A colourblind mode changes block patterns to dots and stripes. Progress saves automatically after each cleared row.

User value
The colour-matching rule adds a layer of planning. Suitable for users who prefer known puzzle boundaries.

Usage scenario
Fifteen-minute breaks in a home office setting.