First of all please don't attempt this achievement unless you have completed all of the challenge rooms because this achievement is hard and you won't get it by luck only by practice and improving your skills and the challenge rooms will help you doing that , Ok lets start:
Step 1 : The first thing you need to do is to complete area 05 so you can get the bazooka , The bazooka makes the game much easier so this is the first step.
Step 2 : You need to follow those videos step by step (the videos aren't mine but they helped me a lot) you don't need to follow them in my order just play the levels in any order you like, By following these videos you will decrease your playing time from trial and error.
Step 3 : In this step i will just note something for the fabricator and the helicopter bosses, make sure to use the pausing trick and you shouldn't have much troubles defeating them.
Step 4 : Before starting the albatross area make sure you have at least 20 lives in hand there are 25 maximum by having a lot of lives you can progress much deeper in the level without reloading the whole level from the beginning and of course you will save a lot of time but don't forget if you lost all of your lives quit immediately to the dashboard so you wont lose all your 20 lives and you can start with them all next time.
Finally those are the videos and just remember don't gave up just keep trying and you will get it if you can do two areas in a day this is more than enough, Good luck soldier [smile]