I like the lively 8-bit music and concept, but the combination of trying to determine the final path from the bridges, plus the advance post not (appearing) to be the same one each time, made the gameplay memorizing and guessing as opposed to reasoning. Having each post be the same result (say 1 always advances, 2 always returns, 3 always loops) would have been enough of a challenge since you have to take into account the post change for each bridge to reach the desired end, which I personally would have found more fun. The randomness might have worked without the bridges since the player could just focus on memorizing, but having to keep track of both did not work for me.