Go carefully. When the guards are about to see you, hide behind the things there. When you get to the top, use the key card you should've gotten earlier.
You have to get a balloon.
When you get past the Black Widow's guards, then you will use it to enter her layer. Have fun! :-)
drink bleach, everyone knows that...
try and stay out of sight of gaurds
all you do is get a balloon and sneak past them but pace yourself.
The key card will open the door in the Black Widow's lair, once you get past the guards. (see related question)
There are no snowballs on Counterfeit Island. (see the related question)
It is the last part of the island, when you have discovered the stolen painting and get kidnapped by the Black Widow. Get past her guards and use the key card to begin the final battle.
When she leaves you in the chairs, she goes to her treasure trove of stolen art, where you will find her right away, as soon as you get past her guards.
you have to take the underground tour
with the camo suit
To get past the guards, go all the way to the left, climb above the boxes to avoid the male guard, and when you see the (female) guard on the third level, follow her and bounce up on the sofa to the locked door. (Use the key card to open the door)