Okay, I got no problem with challenging control schemes. Maverick is a perfect example. But introduce things one at a time! You got three difficult gimmicks: shooting to move, shooting backwards, and controlling multiple units at once. Introduce them one after another, not all at once! And maybe have something happen if you win.
Also, it took me so long to figure out that the numbers that appear when you're hit are your remaining health, not how much damage something dealt.
And why is it called Quadratic Wars?