DropZap is a NOT a color matching game! Rather, you SHRINK blocks until they disappear! If you are a fan of Tetris, Drop7, etc., then you will definitely want to check out DropZap!
HOW TO PLAY
Tap/drag to select the column where you want the square to land. When any square lands, it SHRINKS squares below and sideways. The smallest square (colored red) disappears when shrunk. Your game ends when the grid is full or square(s) go beyond top.
When a square disappears, any square(s) above it will fall, potentially resulting in other squares disappearing, and so on. Chain reactions can be quite elaborate and are an integral part of gameplay.