Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Don't touch me!	Beat the game without taking damage.
Legendary!	Beat stage four without using a continue (on this stage).
Lift off!	Beat stage one without dying!
No bueno!	You don't want this one!
No help needed!	Beat stage one without using a power up.
No second chance!	Beat the game without using a continue.
Semi pro!	Beat stage two without using a continue (at all).
That's all I had to do?!	?????
World class!	Beat stage three without using a continue (at all).
You only live once.	Beat the game without dying.