Baby looked at Gohan. "You are my end?" he asked, amused. "No one is my end. I have the power of Son Goku, the strongest fighter in the universe!"
"You're wrong," said Gohan calmly. His eyes burned with rage. "I am stronger than my father. This ends here." His power was still rising.
"I'm interested," said Baby coolly. He reached into his pocket; Goku's pocket. "Just as I thought," he said. He pulled out a small bean. "A senzu," he said, popping it into his mouth. "The rarest and most useful plant in the universe. I thought Son Goku would have one." Immediately, Baby's wounds healed; the missing chunk of his leg reformed; his power shot up to its former level. "After all, I couldn't destroy you properly like that."
Gohan remained serious. "It doesn't make a difference," he said. "I will get you out of my father's body no matter what!" He suddenly let loose all the rage he had felt watching Baby kill Vegeta and strangle Piccolo. His power rose insanely high, higher even than the last time he had fought with his full strength. Baby's eyes widened in amazement.
"Incredible," he said, licking his lips impatiently. "Enough displays of power. Time for action!" He flew at Gohan with the full strength and speed of a Super Saiyan 2. Gohan outstretched his hand and caught Baby's head, then pushed him away. Baby flipped right-side up, and charged again. Right before he hit Gohan, though, he disappeared and reappeared behind him, and punched, hand crackling with energy. Still staring straight ahead, Gohan moved his head slightly to the left, and caught Baby's hand. He flung him away again. Baby righted himself and flew back at Gohan, punching and kicking faster than he ever had before. Gohan dodged every attack, weaving his head and torso in and out of the punches and kicks. Baby was getting frustrated.
"Stop that!" he yelled, kicking upward with all his might. Gohan bent his body backward, and the kick missed. Baby flew up and dove for Gohan's bent body, but a split-second later Gohan wasn't there anymore. He was behind Baby. "WHAT!" Baby yelled. He shot a beam from his hand, but Gohan smacked it away. Baby howled.
"Get hit, do something!" he seethed, going into a frenzy of ki blasts and martial arts attacks. Gohan moved at unimaginable speeds, not getting hit once. He still did not make a sound or change his stony expression. Baby let out a blood-curdling scream, and, surrounded by a huge ki aura, charged at a speed surpassing what Goku had been capable of. This time he managed to catch Gohan off-guard. He smashed his fist into Gohan's chest, sending Gohan flying backward a couple of feet.
"Ow," lied Gohan, and kicked Baby in the side. Baby flew straight into the ground, making a deep imprint of his body. After a few seconds, a mile-wide ki explosion shot up from the ground, and Baby rose out of it, crackling with energy and growling in anger.
"Damn you!" he yelled. "See how you like this!" He clenched his fists and transformed into a Super Saiyan 3. Gohan floated there with his arms crossed. Baby powered up as high as he could, and Gohan continued to watch, waiting.
"How can you not take this seriously!" yelled Baby. "You look so smug, you arrogant fool. Can you really be this confident? You're facing a fully powered Super Saiyan 3!"
Gohan's expression didn't change. "I told you. You don't pose a threat to me no matter what you do."
"We'll see about that," growled Baby as he flew upon Gohan, giving a tremendous punch that Gohan blocked with his forearm. Baby kicked; Gohan caught it in his other hand, and swung Baby by the leg into a rock wall. Baby flipped around and attacked in a flurry of punches and kicks that Gohan blocked with both arms. Finally Baby connected with a kick to the hip.
"My father's been training," said Gohan. "Impressive. It must feel nice to be in such a powerful body." Suddenly his fist was in Baby's gut. "And that must make it all the more humiliating to be so helpless." Baby gasped open-mouthed, absorbing the impact of Gohan's punch. Then he snarled, and jumped away from him.
"I'll teach you!" he screamed, putting his hands at his sides. "KAMEHAMEHA!" The beam shot forward. Gohan expelled his own beam, meeting Baby's in the middle. They struggled for a bit, then Gohan's beam overpowered Baby's. Baby was left floating in the air, huffing.
Piccolo had managed to get up at this point, and was watching from a safe distance. What is Gohan waiting for? he thought incredulously. Hasn't he learned his lesson by now? All he's doing is making his foe more desperate!
"Should we stop for a bit so you can recover some energy?" asked Gohan. "I don't mind."
Baby bared his teeth. "I don't need your sympathy, fool," he said. "There are other ways of winning a battle..." He suddenly stretched his arm out in back of him, so that his hand was facing West City. "I may not be able to hurt you, but I can certainly increase our battle arena." He began to charge up ki.
For the first time, Gohan's face registered alarm. "No!" he exclaimed. "You can't!"
Baby's face twitched. A deranged smile broke forth. "So, the arrogance cracks at last," he said. "Perfect." He fired.
Gohan raced for the beam, trying to pull in front of it before it hit. But Baby had focused his energy on speed, not power. The beam hit West City, completely annihilating it. By the time Gohan reached the city, it was nothing but rubble. He turned around.
"Fine!" he yelled. "You wanted more room to fight, well come at me!" Baby did. Going with the full speed of his host, he was suddenly above Gohan. Now Gohan was above him. Now Baby was on Gohan's side. Now Gohan was 10 feet away. Every time Baby tried to hit Gohan, Gohan would be in a different place; he seemed to be concerned only with avoiding Baby, not fighting him. The two were impossible to follow, but neither one was actually hitting the other. Piccolo tried his best to keep up.
Gohan! he thought. What is wrong with you!
Baby was furious. Gohan wasn't even so much as poking him, but he still couldn't move fast enough to land a hit. He was getting desperate.
Piccolo, watching the battle from the ground, didn't know what Gohan was playing at. He saw Baby getting more and more angry, and knew it was a bad sign. Finally he took a chance. "Gohan!" he yelled. Gohan started and turned. So did Baby.
"Why are you not taking this battle seriously! You must strike now! What are you afraid of!"
Baby had been wondering the same thing. Now he saw Gohan's face, and it looked slightly worried. A thought dawned on Baby. He laughed loudly.
"HA HA HA! It's because I have your father's body, isn't it? You don't want to kill me!" Gohan was taken aback. Baby lunged forward and punched Gohan hard in the face. With blood leaking from the corner of his mouth, Gohan pulled his head up.
"Is that really it, Gohan?" asked Piccolo, beginning to sound angry. "You're not hurting Baby because you're afraid to hurt Goku? That's pathetic! Don't you see that Goku would want you to kill him for the sake of the Earth? How can you be so selfish?"
Gohan was at a loss for words. Baby was punching and kicking him tirelessly, and Gohan seemed not to notice. He was slowly becoming bruised and cut.
"Gohan! Look what he's doing to you!" roared Piccolo. "You are Earth's last hope! Are you going to throw it away!"
Baby leapt back and began forming a ki ball in his outstretched hands. "Now, you die for your ignorance!" he said gleefully. He fired. Gohan blocked half-heartedly, and was thrown to the ground. Piccolo flew over to him.
"I never expected this from you," he said. "You are afraid to kill Goku? It's the only way to save the people you love! Vegeta realized this! Do you want his death to be in vain?"
"I..." said Gohan. He felt helpless. He had never thought he would be faced with killing his father.
"Think, Gohan. This creature is not Goku. He is a parasite who leeched off of Goku's body and killed your brother! And if you don't destroy him now, he'll kill the rest of your family and friends! Don't you think--" His words were cut short as Baby appeared in front of him.
Lying on the ground, Gohan saw Piccolo's pupils contract as Baby punched straight through his chest. Baby laughed as Piccolo spat blood. Then he leaped into the air and kicked Piccolo in the head, snapping his neck. As Piccolo crumpled to the ground, Baby chuckled, "Let's see you regenerate your way out of that one."
Gohan's eyes flashed. His body erupted in an explosion of ki. He shot off the ground he was lying on and screamed. Baby stared in surprise. Gohan landed back on the ground in front of Baby. He was surrounded by a huge golden aura. He looked at Baby with a look of unrestrained hatred.
"He was right," Gohan said, voice shaking in anger. "Vegeta was right, too. My father would want it this way." Baby was suddenly on the ground, without knowing what had happened. He looked up and saw Gohan lowering his hand after the blow. "I'm going to kill you."