This game is fast-paced, with different difficulty levels. You are running after a train and you have to choose between three cards (whose order can change): Left, Right, and one that varies.
You have to click out a pattern of Left, Right, Left, Right smoothly or risk losing time. The shifting cards can make it hard to get things right. Each move you make, a crumb of the story progresses, which I liked.
At one point, the cards flipped over completely to the other side, showing only the backs. I couldn't tell if I was intended to memorize a pattern, to randomly guess, to replay and learn the exact pattern, but I was able to beat the game with just random guesses.
It reminded me of the game QWOP a bit, controlling individual body parts to run.