Chroma Tower

Tap a column to drop the current block. It falls to the lowest available position. If it lands next to blocks of the same color, the entire connected group is destroyed. Remaining blocks then fall down and may trigger new cascades.
A translucent ghost block shows exactly where the block will land — use it to plan ahead. You have a limited number of moves, so spend them wisely.
Levels: complete many campaign levels. The fewer moves you use, the better your record.