Instructions
Select "Vergil" as your character before you begin as he is the strongest fighter in the game.
Buy as many healing potions and herbs as you can before you enter. Try to max them out if possible.
Enter the "Bloody Palace" and fight through the monsters on the first level. Avoid using healing potions if possible in the earlier levels in order to save them for harder levels.
Save your game at the end of each level to avoid losing your game progress if you die.
Heal at the end of each level if necessary. You automatically earn a small health boost at the end of every level so only heal when necessary. Buy more potions in the palace stores when possible.
Repeat the process through all 9,999 stages until you get to the final boss battle. Save before you begin the battle.
Defeat all of the bosses in the game without dying. Use your healing potions when necessary until you defeat the bosses.