It was an interesting concept. I had fun trying to beat my previous score, but the best I could do was 88. I think it's challenging and a bit hard to get the hang of it, but when you do, it's great. The most challenging part is focusing on the two opposite perspectives shown on the screen. For some reason, I couldn't tell where the buildings were based on different perspectives. For example, is the building above the player (y-axis) or behind the player (Z-axis).