Jetpac Refuelled

For those who may be struggling with this achievement, there is a way to "cheese" it, though it requires you to have level 25 unlocked.

Level 25 contains only one type of enemy: blue suns (I don't know what they actually are called, but that's what they look like). If you kill them, they respawn right on your tail after a second or two. Infinitely. To take advantage of this, collect a couple of upgrades so that you have the spread shot, place 4 fuels in the ship, then hold onto a fuel and shoot behind you as you go in a relatively tight circle. If you need to go to the other side of the screen, then by all means. Just don't go over the top of the ship, as holding the fuel gives you a buffer of one hit (mistakes will happen) and if you die you need to gather the weapon upgrades once more.

Now I say that, but you will inevitably die. The time will run out and you will respawn; minus 1 life. That's ok. Gather your upgrades once more and continue this cycle until your reach 1 million points.

Go to Refuelled Lv 25, you will be facing the blue fuzzy enemies that spawn behind you when you kill one. The trick here is to get 2 weapon power-ups (the tri-shooter) and then hover from edge to edge of the screen on the top half of the level shooting the row of enemies that will keep appearing.
Skip to 3:20 in the video to see this trick in action
- The timer will run out causing you to loose a life, just grab the weapon power-ups again and continue piling up the points.
- You might miss a few enemies when flying across so just be cautious avoiding the few stragglers

This achievement I achieved in the third attempt and at level 13, I will explain a solution that I find easier for this achievement.
The trick is this, you can not get the Fuels fast and move on to the next stage. You should stay until the time is running out, right at the end, then you can move on to the next stage.
But the easiest way to do this is the following, you must put the '' Fuels '' on the rocket, and when you reach the last one you do not put the rocket, keep it in your hand and try to get the 3-point laser, there you will be in the right corner '' the place where there are enough enemies '' and kill enemies until you hear the warning noise that is running out of time, remembering that when you are running out of time, more enemies will come, this is something good as well so you get enough points killing enemies. And remembering that when you have the '' Fuel '' in your hand, if an enemy hits you, you do not die, only the '' fuel '' falls on the ground, but when it falls, you must run and do whatever you can to catch he, otherwise you die if the enemy hits you again and you are without him in the hand. This gets easier on the levels that have that rock on top of the rocket, so you can end up killing enemies all over the place, because the fuel will not automatically fall on the rocket.
Try to avoid dying, because, so the laser zero.
On difficult levels like 8, you do not do what I said, try to pass as fast as possible because level, so you will die easily and will zero your points.
If you do these things at most, at level 15 you get that achievement, and if it gets too difficult, if there are many enemies, you use the nuclear bomb. I used a lot on level 11 and 9.
Any questions ask in the comments, if you do not understand, ask also that I will respond.