This achievement is slightly about luck, but there is some skills that can help as well.
You need to get a kamikaze going around Lemmy. You will need to be stationary while the kamikaze goes around you. It will need to be going around for a couple seconds before the achievement finally pops.
The Kamikaze will aim to hit Lemmy, so it is constantly correcting it's course to hit you. You need to let the Kamikaze get in close, and then dodge him slightly off to the side. If done correctly, the Kamikaze will constantly try to correct it's course around you, but can never technically hit.
Aim to get this with the basic blues since they are the slowest of the Kamikaze. Also try to make sure you have the one unit by itself. I'm guessing it would be possible to set him up while also dodging fire from others, but it's extra difficulty you should avoid.
Have some space to move around and set up your position. Tight spaces can make this a lot harder when trying to dodge.