After a month the CE were nowhere to be seen again and showed no sign to attack again before the moon would show up. For the next year Broly had been training every day. He not only trained under heavy gravity but also sparred with everyone he could find. He quickly became an unstoppable force in the close combat department.
But his ki technique was by no means weak, he invented a few techniques and became more adapt in it. He was not the best in ki manipulation as his ki inherited the violent nature after he took over control, making ki manipulation a bit harder. Of course, no one would engage in a ki contest with him, as he could just brute force himself to victory.
After a while he even started asking for pointers from other race leaders or their strongest fighter to push himself even further. Many accepted the request as they could gauge his strength and train their fighters. Certainly, advantageous for all the parties involved.
With every training and sparring session, he became stronger but strangely enough although he thought that he should be able to access his Super Saiyan form already, he couldn't.
He observed his S-cells and found out that it had something to do with the Mother Blood Crystal. It appeared that because the cells were elevated to greater heights, they were less receptive to mutation. They needed much more energy to mutate. Although it pushed his transformation a bit back, he could feel that he would only benefit from this postponement.
Since his Super Saiyan mode was delayed for now he went to learn the next best thing, Great Ape or alternatively called Oozaru transformation. He would have to learn it either way, as it may give him clues about the transformation into Super Saiyan 4, even though he was not sure if it is a real from as it was said to be non-canon.
But he couldn't help but feel that it is, since he himself shouldn't be canon as well, that is if he ignored the new Broly movie. So, since the possibility was there, he would investigate it even if he couldn't achieve Super Saiyan 4, he would at least have learned more about his body which shouldn't be a bad thing.
There were few Saiyan-elites that could control themselves as Oozarus but only one was able to create a Power Ball, an energy sphere used for a replacement for an absent moon. It created Blutz Waves like any other celestial body when it reflects rays of sunlight.
It took him a month to master this technique. Now he was on an open field meditating to steady his mind for the transformation as he wasn't sure how he would react to the Oozaru form. The city lord assisted him, as he was probably the only one strong enough if Broly lost control. Although his base power wouldn't be enough to contain Broly in an accident but as most from the Hera race, he could transform. Tripling his base power of 50 million, resulting in a battle power of 150 million, it should be more than enough for Broly who approached 100 million after his strength increased tenfold.
After meditating for an hour, he stood up and created the Power Ball before throwing it into the sky. He stared at it for a while until he noticed his lifeforce from his tail going into a turmoil. The power started cursing through his veins, burning inside him. Suddenly his mind went blank.
The city lord stared at Broly, seeing the pupils going completely white. Fangs started to appear, and his head-shape changed to one of an ape. Broly's body started rapidly growing and with it his hair all around his body. After a few moments his body was covered in fur. His eyes were now dyed in a blood red tint.
Broly only stopped increasing in size until he stood at a 30-meter height.
"Groawwwwr!"
A giant ape exuding a tremendous amount of power was standing in front of the city lord, roaring into the sky. The city lord saw Broly notice him. He looked over and opened his mouth. Sensing that something didn't seem right, as he couldn't sense any intelligent in the eyes of the giant Ape in front of him.
"Hey Broly, are you al-?"
Before he could finish, he saw ki gathering inside Broly's mouth.
The city lord Instantly transformed. His bluish skin changed to a lime-green and his eyebrows and hair turned red. His muscles increased dramatically. He crossed his arms in front of him to block the incoming attack. He waited for a second before putting his guard down to look.
*Growl*
He saw the giant ape lying down onto the ground while clutching his head in pain.
"Arghhhh!!"
Broly suddenly beat his own head. The city lord looked tensely at the happenings in front of him. Although he offered a helping hand, he would rather avoid the fight with a beast. He was more interested in the transformation itself and how it would be influenced by the increasing lifeforce. He could only get information if Broly was conscious and actually remembers what happens.
He looked at the Power Ball in the sky before sending a ki blast at it, destroying it in the process. The city lord waited it out as Broly struggled to regain his consciousness.
In Broly's perspective he was currently fighting for supremacy in his head. His subconscious taking over, pushing his conscious to the back. Maybe it was because of his meditations or his previous experience of fighting over control but he started to win and retained his conscious slowly.
A few minutes later after rolling around and smashing small hills, Broly stopped moving. He slowly stood up and looked around, seeing the destruction he caused. The city lord already in his base form sat on a rock not far away.
"Master. How long was I out?" Broly's voice in his ape form was booming in a low tone. Creating airwaves by simply speaking.
"Only for a few minutes."
"Thank you, Master. if you had put me out early, I feel like it would have been more difficult in the future."
"No Problem. So, how does it feel?"
"Incredible! My body feels like an unstoppable force." Broly started throwing a few punches before realizing that he was around the same speed as before the transformation.
"My speed multiplied as well but my massive size reduced it by quite a bit."
:3