There is a bug in the code to display the number of steps taken at the end of the game. In Game_DisplayFinalScore the code automatically adds 1 to any value in order to display the correct digit, however when it needs to display a leading zero before any digit it displays a '1' instead of a '0'.

At Action11_LiftOffFromMoon 3 bytes have been wasted by the last 'JP' statement which isn't need as the code can just fall thru.