Yes, buy moar bigger, useless, expensive cannons to let yourself suffer extreme injuries. Makes perfect sense! No wonder this turtle likes to be tossed!
I have to be honest, this game isn't all that great. It's hard to find out where the cursor clicks, the graphics are bad, and it's much too random to have any real fun. (Tune down the insanity JUST a notch.)
Spider-Man is easy. Just send out all the special zombies you already have straight at him. MJ First, since it pauses. Then while they're fighting him, infect anybody near him to join the fight.
 "GeoSketch"){kind=icon}
 "Bowmaster Prelude"){kind=icon}
 "Sushi Cat The Honeymoon"){kind=icon}
 "Amorphous+"){kind=icon}
 "Necronator"){kind=icon}
 "Memoir Text Adventure"){kind=icon}
 "Toss the Turtle"){kind=icon}
 "Quizzical Insanity"){kind=icon}
 "Dead Frontier: Outbreak"){kind=icon}
 "Windows Mista"){kind=icon}
 "Pandemic: American Swine"){kind=icon}
 "Sift Heads World Act 1"){kind=icon}
 "Competitive Line Waiting"){kind=icon}
 "Shipwreck"){kind=icon}
 "Dead Frontier: Outbreak 2"){kind=icon}
 "A Knight's Story 2"){kind=icon}
 "Infectonator : World Dominator"){kind=icon}