this is the real bass version, well some of it, i cant work out the part that goes really fast at the end of the full version.

g-7-6-7---------------7-7-|-9-8-9-----9-7-6-------------------|--
a-------------7-5-4-5-----|------------------9-7-7------------|--
d-------5-5---------------|-------7-7-------------------------|--
E-------------------------|-----------------------------------|--

g-4-6-7-6-4---4-----------------|-----------------------------|--
a-----------7---7-5-4-5-4-------|------------4-5-7-4----------|--
d-------------------------7-5-4-|------4-5-7---------5-5------|--
E-------------------------------|-7-5-7-----------------------|--

well there you go!