I feel like the default values gave me a 3 star win most of the time, is there a 1/2/3 star ranking? I just assume that was what it was. if so maybe the rank thresholds need to some tweaking to incentivize making faster setups. The game looks great though and I do like the idea of puzzles made of train tracks with timing/speed. One thing I'd love to see would be a way to select which level to play.