If you want too see the other effects you have to go into the PP_Main.wdl file and edit the line "PPQuad.material= ScratchedFilm_mat;" to something else, like RainDrops_mat. (I thought that one was especially cool, ).

Code:
void main()
{
    cout << "I am MrCode,";
    cout << "hear me roar!";
    system("PAUSE");
}