Click the balls on the floor, click them one by one from the left and count the bounces (2421), zoom out.
Click the drawer in the view and enter the clue number 2421, get the hammer.
Open the first drawer, get the geometry box and open the last drawer, memorize the colors, zoom out.
Open the geometry box in a new window.
Click and open it, get the protractor and the paper piece.
Note the angles in the protractor, close window.
Click the drawer on the left, change the degree as per clue from the protractor (60, 90, 45, 20).
Get the 2 paper pieces and gramophone record. Zoom out.
Click the color locker and change the colors as per clues from the color bottles.
Get the gramophone and the paper piece, zoom out.
Open the gramophone in a new window and place the record to it, switch it on and close window.
Click the rat hole and drag the gramophone near it, click the rat and add it to the inventory.
Click the shapes on the wall, drag the rat to it and give the hammer to the rat.
Solve the puzzle, the clues are (1/4, 1/2, 3/4, 1) and get the paper piece, zoom out.
Click the books, click it again and get the paper piece, zoom out.
Click the main door and note the directions.
Arrange the paper pieces in the new window; note the directions and their appropriate numbers.
Enter the number (4524) to the main door to open.

GREAT ESCAPE!