Originally Posted by TAI JASON
You can get this easy in stage 1. The first mid boss is a little mecha. Thats NOT the one. After a while you fly over a highway/speedway, then a midboss transform and if you have Yun itīs easy: Try to be on the top of the screen and blast him off before he can even shoot you. After you finish him quick, additional enemys appear, kill them all and you get the achivement.
i bomb him, it don't work :/ there is a long moment where there is no ennemies on the screen.
you've got a picture ? a video ?