How to make a NON TYPICAL Deadmau5 bass..?

he makes a great bass like a really distorted saw or something help me out??



- YouTube (at 1.03)



Deadmau5 - To play us out [BEST QUALITY] - YouTube (at 1.41)





- YouTube (at 33 secs)





and if someone could suggest how these notes might be laid out would be a help;)

annnnnnnnnnyyyyyyone???