a True Saiyan while powered up to Super True Saiyan
In the true form of a saiyan he/she first transforms into a great ape. They then must have a intense anger. (Note, only anger triggers the transformation. Sadness, loss, or grief will NOT trigger the transformation) Then the user shrinks down to normal size, without losing the ape characteristics. This form is impossible to be transformed into at will. Each time the user transforms, they first have to become an ape, experence extreme anger, and then transform. The state of which the saiyan transforms into ape in is the form of the true saiyan state. However, it is impossible to transform into this state without destroying the users body while in a original form of over super saiyan 3. In super saiyan 4, the user has about 2 hours before his/her body is destroyed by the sheer power. In SSJ 5, it takes only 1 and a half hours. In SSJ 6, it takes 1 hour, in SSJ 7, 45 minutes, In SSJ 8 or 9 it takes merely 30 minutes, and in SSJ 10 it takes merely 20 seconds before the saiyan's mortal body cannot handle the power and destroys itself. In this state, it takes the power of the state the saiyan that transformed into it in, and multiplys it by one thousand, and then again multiplys it by the level of super saiyan. Ex: transformed in ssj3 -> power x1,000 -> power x3
In this form, the saiyan loses all personality. There is literally NO POSSIBLE WAY to reach the saiyan inside. It will rampage if inraged but usually just stays calm and lusts for battle. One cannot transform out of the state at will. In normal True Saiyan, the state lasts forever until the saiyan is rendered unconsious. In SSJ, it is also unlimited. However, in SSJ2 it becomes increasingly difficult to charge ki after 2 days in the transformation, until the body cannot create enough energy to sustain it and one transforms back to base saiyan form. In SSJ3, after 1 day, the body cannot sustain the form and transforms back to the base saiyan form. It IS actually possible to do the fusion dance in this form, however, all memories of life outside of the state are gone in this form, so the short tempered battle hungry True Saiyan would have to stay focused enough to learn it and care enough to use it. While performing the fusion dance, both users must be in True Saiyan state or it will fail.