The time I was fused with my cat and sent into the Dragon Ball world

Divine Future Problems

So, how'd we get into this situation? Me at full strength fighting this pink furred copycat of a god? Well, let's go back to when me and my future self arrived.

The time machine lands on the ground with a rough impact, but we remain focused.
"You suck at landings." I comment as I look at my future self. He simply sighs.
"You suck at them too. Whatever, let's get this over with." He responds, not in the mood for this. As we both hop out of the machine, a storm of energy forms in the sky. The time machine is put in a capsule quickly, said capsule stored away as ki blasts rain down. Forming a ki barrier, I transform into Primal Cat to power it up, defending against the blasts. The barrier does show cracks, however.
"Ah, you're here." A voice says from above, descending as the person is revealed. Black. "I see you're using that unsightly form, too. To think such a disgusting form is so powerful." His expression shifts to disgust as he looks at me. I remain calm however, my eyes cold as ice.
"I'm going to kill you." I declare, leaving nothing for argument. Before anyone can stop me, I vanish. William Black is sent spinning, slamming through several buildings only to stop himself mid-air. That proves to be a mistake, however. "Turn around."

Black turns around, only for a Kachin block to smack him in the face, then he gets buried under multiple blocks. Me now floating above him, I charge large ki blast. "Rest in hell, motherfucker." Firing the blast at the mountain of Kachin blocks, the blast impacting and causing a chain explosion that spreads destruction and leaves a massive crater. My future self looks on in shock, amazed at the power output.
"What the hell...? Maybe we have a chance." He comments as he watches me float above a flaming crater. "Amazing. What kind of strength did he get in the time we've been apart...?"

A moment of silence in the battle as my eyes focus on the form of William Black, I descend to the ground at sensing that he's alive.
"I'm impressed you survived that." I compliment with a calm expression, remaining focused. "You're quite durable, but I expected as much from someone with a fused body." Black stumbles back to his feet, injured and pretty much near death, coughing up blood.
"S-such... power." He responds with a grin, forcing himself to stand. "However..." He slowly relaxes himself and heals himself as much as he can, lessening the damage to minor bruises. "That was the last push I needed to understand your power." A pink light glows from Blacks body, pink fur growing from across his body as his hair grows out. With a roar, his power explodes, launching me back, but I transform into my Blue form immediately to stop myself and match the pressure. This is going wrong already. When the light clears, my frustration becomes visible.
"Damn it, I should've gone all out from the start." I comment as Black steps from the flaming crater, parting the flames and dispelling them with a wave of his hand. A new form.

Pink fur, different from my Blue form.

This form...

It's a pure version of my own form.

Black adopts a stance with a smirk.
"What do you think of the colour? Is it not beautiful?" He asks with a new confidence, standing regally with a divine posture. "I think a fitting name for this is... Rosé. Your memories show me a similar form with a similar name, so I'll use this. Just so your simple mind can handle it."

We both vanish from sight. Punches and kicks are exchanged, the destruction spreading, leaving my future self in a mix of terror and awe.
"I need to help here...!" He tells himself mentally as he powers up to his own Primal Cat form, flying in and trying to get pot shots, only to get sent to the ground by the pressure of the clash. Two forces stronger than the gods. Ki strings, blades, hammers, everything Black and I can create is thrown around. Destruction spreads as Kachin blocks explode. "Damn it!"
"Father, let them fight." A voice says from behind my future self, causing him to turn and see his own Gato. One that was trained from a young age. "We're outclassed here. We can't get involved here." It's frustrating, but my future self nods, trusting his sons judgement.

Flying in at Black, I launch several ki knives that get destroyed by a ki blade.
"You aren't very creative." I comment, turning the remnants of the knives into ki strings that grab Black by his arm, allowing me to land a solid punch and grab him, ground slamming him and making a huge crater for the 5th time in this battle. There's a lot of large craters around the area right now. "Yet you're growing at the same rate as me. I find that concerning, so I'm going to cut loose." Black becomes nervous but puts on a facade of confidence.
"Surely you don't have any-" He says, then getting hit with a gut punch as I transform into Primal Blue.
"Any forms beyond my normal Blue? Yeah, I got this one." I respond, calm but cold as I fire a beam through his gut, sending him far away. Someone else teleports in, however, saving him. Another Zamasu. "I can assume you're immortal." The Zamasu ignores me and heals Black, leaving a circular scar where my blast fired.
"You aren't done yet, counterpart." He says, helping Black up to his feet. "We can crush this fool together."

"Not if I have any say in this!" Another voice roars, slamming the Immortal Zamasu through buildings. Gato arrived with Goku and Vegeta and just took Zamasu out of the battle. "Dad, handle the faker! This immortal bastard is ours!"
"How dare you lay your hands on a god!" The Immortal Zamasu shouts, trying to stab Gato, only to get his hands blasted off by Vegeta as Goku teleports in, teleporting all four of them to another planet to take the fight elsewhere.

Sensing them out, I smile as I realise what happened. Goku did the first telelort, Gato the second to Beerus' Planet. Returning my gaze to Black, I adopt a stance.
"Let's continue." I say with a new confidence, deciding to go all out. No pulling punches now.