stamina and agility may be harder to train, but you only need them at around 400 or so. if you get other two stats high then you win every time, spend money on health training and your guy will have run 400m or so before the others even start.
just for the record, this game is logical, it's just without a million elements it will never make sense. ANd then what would be on the app? How would the money crazed maker of this game make his beloved moeny? HOW?HOW I TELL YOU!!!
first, think about how much pain and agony this game has caused you every time you slip up, now imagine playing it when your computer randomly freezes and arrows keys stick. Then your where I am.