The first part is an autoacroller. Part two 49secs is possible but really tight. Part three you want to minimize the amount of time you switch moving up or down, as that slows you down. Part four comes down to rng if the enemies attack or not due to lag. Part five is basically an autoscroller. Part six is basically an autoscroller. Part seven sucks because Peach slips around, but I never got better than 189. Part eight is all about minimizing how far Bowser travels.