Dragon Crystal is an early Roguelike RPG in the vein of Fatal Labyrinth and Azure Dreams, thus it's naturally vulnerable to the same type of luck manipulation in its random level generation to allow the protagonist to miraculously find stairs up in the opening area of each floor and complete the game in record time.
Challenger's improves upon the previous run by 00:16.37 seconds through making use of the pause button in order to manipulate better luck.