Berenstain Bears and the Spooky Old Tree - Platform: Gameboy Advance

Unlock level 2:
---------------
Enter the following password at the password screen, its 
located in the second option at the main menu: Bug Squirrel 
Knight Knight 

Unlock level 3:
----------------
Enter the following password at the password screen, its 
located in the second option at the main menu: Squirrel Bug 
Knight Drawers 

Unlock level 4:
---------------
Enter the following password at the password screen, its 
located in the second option at the main menu: Drawers 
Drawers Knight Drawers 

Unlock level 5:
---------------
Enter the following password at the password screen, its 
located in the second option at the main menu: Knight 
Squirrel Squirrel Knight 

Unlock level 6:
---------------
Enter the following password at the password screen, its 
located in the second option at the main menu: Bug Squirrel 
Bug Bug 

Unlock level 7:
---------------
Enter the following password at the password screen, its 
located in the second option at the main menu: Squirrel 
Bug Knight Bug