If you've ever felt like puzzle games are just too easy, have I ever got the game for you. Quantro follows a familiar gaming trope pioneered by Tetris decades ago. Blocks fall from the top of the screen and you line them up into rows to clear them. Easy, right? Quantro makes it interesting by confronting you with two overlapping games simultaneously.
The two games are color-coded, with the red blocks in front and the blue ones behind. At first you get alternating red and blue units to drop into place. Perhaps you'll start thinking at this point that Quantro won't be so difficult.