good game make a seqel
Even without the air strike, as long as you have 2 or more of the basic unit and maintain a steady flow of bullets, you can shoot down almost all of the laser beams while aiming at the 3 heads.
Up untill the first boss. Bulletspamming, killing all of my soldiers in no time. I tried beating it 3 times with different strategies, it just tears everything up.
Totally spoiles the game for me.
but as far as i can see u cant sell your troops once u buy them so u cant swap out for other types unless u wait for um to die