Money for black suit
First, get an empty mastercard. then go to itunes and log out of your account. create a new one. fill everything out and when you get to the payment, click mastercard and fill out the information for that. when your finished, you have money for itunes! (witch you can use to get the black suit)
First fight rule is do not to get surrounded.
Take out enemies with projectile weapons first. Longrage weapons are going to cause you the most hassle.
Watch out for Spider power-ups scattered around the city - they give you more cash to spend on health drinks.