Description: The idea of chain reaction is simple, but the puzzle elements is not. If you don't like puzzle games that requires a lot of thinking, then this game is definitely not for you. If you like tough puzzle, keep on reading how the game works. Your objective is to cross over all grid by moving horizontally or vertically in any distance. But the next move must match the current symbol (label with a black x) in shape or color. Once you have crossed all grid on the screen, you will proceed to the next level. You can also skip any level by pressing the level button on top of the screen.