I found it easiest to play Boss Rush in Raiden Fighter Jets. When you get to the second boss rush you will see a crane in the middle of the screen that has a gun on top and moves back.
Don't shoot it and go up and with your fighter go across it until it explodes releasing several fairies (I believe its as many as 10 but not sure)
Do this a few times and you will get your achievement. Easiest method IMO