This article, Full-Power Super Saiyan 4, is property of Supreme Kuzon.
This article, Full-Power Super Saiyan 4, is a Fan-Fiction article.
Full-Power Super Saiyan 4 is a Full Power Super Saiyan version of Super Saiyan 4. It's predecessor is Full-Power Super Saiyan 3.
The form is the mental and physical perfection of the Super Saiyan form, but this time Super Saiyan 4. Goku and Vegeta achieve this form sometime after Dragon Ball GT from training. In this form, you are more powerful than the normal Super Saiyan 4, but not wild with power or out of control. You can achieve this form the same way as other forms (No Great Ape).
The form looks just like Super Saiyan 4: Red fur and tail, and longish black hair. But the muscles are a bit larger and there is no lightning sparks but only the user power's up. The user can sleep easily and do the same things as the Full Power Super Saiyan form.