Dragonball Comedy
Description
The Golden Oozaru form is achieved i think through the super saiyan level 4 form. This form is a lot like the normal Oozaru form except that it is infinitly more powerful and also virtually indestructable. It is also achieved in much the same way as becoming a normal Oozaru except the saiyan has to be in Super Saiyan level 4 form. I think that this is the true Super Saiyan form because in one of Vegeta's flashbacks he claims that the first Super Saiyans became Super Saiyans in their Oozaru form and the images clearly show this.
The Alternative Theory
The Golden Oozaru is the Nazi's ultimate weapon of war. Genetically created by Adolf Hitler, it was to be released in the year 2004 but Gohan stopped it by threatening to get Frieza to perform anal sex upon it. Gohan then turned the Golden Oozaru into a rug that is now in his thrown room.