You have two options.
Array Referencing and the Inspector
This method is NOT recommended for all your game assets because it is much less efficient. However, any resources in the folder Resources/ will always be loaded, and can be called by name during scripting. For example, if you had a texture called "Wall" and it was in the Resources folder, you could do:
You could devise some way of loading multiple resources from the Resources folder into an array, though again, the method described above is preferred.
answered Jun 14 '10 at 08:34 PM