To kill the flying guys in the red jumpsuits and the metal wings, pick them up and throw them into the air. As they fly back down, GRAB them and throw them as hard as you can onto the ground. Do not let them touch the ground before you throw them though. If they do, you have to throw them back up and then slam them as hard as you can into the ground. This will break their wings and kill them.
Very very difficult to play for long. I got tired of trying to decipher which goons were my goons and which were enemies, got tired of not being able to figure out how to move the goons that I wanted to move and in the way I wanted to move them, and got tired of playing a really cheap ripoff of 'Tactics Live 100'.
I'm not bashing this game or anything, but it's really hard to play or even understand how to play. All it does is allow you to plonk down one unit that kills every enemy who slithers back. There's no scoreboard, no badges, no variation in enemies or units, and no way to understand if you're even playing it right or not. I would recommend major improvements in both gameplay and music before giving this game anything more than 1 star.