Hid behind the statues and/or plants.
It is too dark for the cameras to see you. The things to avoid are the female security guard in the office, and the lasers in the statue room. (Hiding behind the statues works.)
Wait until her shadow moves away from the Security Room window, then run across.
You have to get a balloon.
He is in Bobo clown shop.
You hang on the lightbulb on top of "The Scream". Then you will be taken to jail as you will be thought to steal "The Scream". If you want a complete walkthrough, go to "poptropicasecrets.com".
Some users have tried jumping over the window, but this is unnecessary. Wait until you see the guard's shadow cross the window, and quickly run across.
look up the walkthrough on youtube its so easy.
Just run past the window when the guard's shadow isn't visible on the shades.
There are no snowballs on Counterfeit Island. (see the related question)
Wait until her shadow moves away from the Security Room window, then run across.
Go through the hatch and try to get past the museum security till you get to the scream painting.
To pass the Security Room, wait until the guard's shadow is no longer on the window.
You have to get a balloon.
In the upper left of the museum.
you have to take the underground tour
the security guard is at Bobo's clown store
When entering the museum at night, you slip past the security office and then avoid the lasers in the statue room. When you reach the painting, jump onto it. This may not seem wise, since you immediately get caught...but it is the next step in the quest.
He is in the BoBo Clown Store