Super Saiyan 9 is the ninth form of Super Saiyan a Saiyan can take after Super Saiyan 8. When a Super Saiyan 8 goes out of control and continues to gain a lot of energy while angry, their anger will colapse on itself, causing the user to become completely emotionless despite being previously very angry. They gain even more powerful because they are more calm and calculated. They also move so fast that it is phsically impossible to even see them move. It is just from begining to end. No middle.