Complete world 1.
Complete world 2.
Complete world 3.
Complete world 4.
Complete world 5.
Complete world 1 without losing a life. [Medium or higher difficulty]
Complete world 2 without losing a life. [Medium or higher difficulty]
Complete world 3 without losing a life. [Medium or higher difficulty]
Complete world 4 without losing a life. [Medium or higher difficulty]
Complete world 5 without losing a life. [Medium or higher difficulty]
Collect the 1-up in level 1-1.
Collect both 1-ups in level 1-3.
Collect both 1-ups in level 1-4.
Collect the 1-up in level 2-2.
Collect the 1-up in level 2-3.
Collect the 1-up in level 2-5.
Collect the 1-up in level 3-1.
Collect both 1-ups in level 3-4.
Collect both 1-ups in level 4-1.
Collect the 1-up in level 4-3.
Collect the 1-up in level 5-1.
Collect the 1-up in level 5-4.
Collect the 1-up in level 5-5.
Collect the sickle in level 4-2.
Collect the sickle in level 5-3.
Complete level 1-1 without taking any damage. [Hard difficulty]
Complete level 1-2 without taking any damage. [Hard difficulty]
Complete level 1-3 without taking any damage. [Hard difficulty]
Complete level 1-4 without taking any damage. [Hard difficulty]
Complete level 1-5 without taking any damage. [Hard difficulty]
Complete level 1-6 without taking any damage. [Hard difficulty]
Complete level 2-1 without taking any damage. [Hard difficulty]
Complete level 2-2 without taking any damage. [Hard difficulty]
Complete level 2-3 without taking any damage. [Hard difficulty]
Complete level 2-4 without taking any damage. [Hard difficulty]
Complete level 2-5 without taking any damage. [Hard difficulty]
Complete level 2-6 without taking any damage. [Hard difficulty]
Complete level 3-1 without taking any damage. [Hard difficulty]
Complete level 3-2 without taking any damage. [Hard difficulty]
Complete level 3-3 without taking any damage. [Hard difficulty]
Complete level 3-4 without taking any damage. [Hard difficulty]
Complete level 3-5 without taking any damage. [Hard difficulty]
Complete level 4-1 without taking any damage. [Hard difficulty]
Complete level 4-2 without taking any damage. [Hard difficulty]
Complete level 4-3 without taking any damage. [Hard difficulty]
Complete level 4-4 without taking any damage. [Hard difficulty]
Complete level 4-5 without taking any damage. [Hard difficulty]
Complete level 4-6 without taking any damage. [Hard difficulty]
Complete level 5-1 without taking any damage. [Hard difficulty]
Complete level 5-2 without taking any damage. [Hard difficulty]
Complete level 5-3 without taking any damage. [Hard difficulty]
Complete level 5-4 without taking any damage. [Hard difficulty]
Complete level 5-5 without taking any damage. [Hard difficulty]
Complete level 5-6 without taking any damage. [Hard difficulty]
Obtain a score of 50,000 or more.
Obtain a score of 100,000 or more.
Complete the game on hard difficulty in one sitting. [No passwords]
Max out all weapons at the same time.