Complete level 1.
Complete level 2.
Complete level 3.
Complete level 4.
Complete level 5.
Complete level 6.
Complete level 7.
Complete level 8.
Complete level 9.
Complete level 10.
Complete level 11.
Complete level 12.
Complete level 13.
Complete final level and end game.
Get 5 life points by taking potions.
Get 9 life points.
Complete final level and rescue princess in time.
Complete final level and rescue princess without gaining additional life bars during whole game (you can have 4 hp max)
Complete whole level 12 without dying (the level consists of 4 sub-stages)
Complete whole level 12 without dying (the level consists of 4 sub-stages) and rescue princess in time