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I like how here Raditz is such a final boss than in the original universe.

For sure! Goku and Piccolo were able to defeat Raditz much easier, thanks to the help of Gohan (Goku's son) and the Makankosappo to easily pierce Raditz's defenses. They have no such technique here in Universe 9. The Dodon Ray sort of counts, but it's far inferior. Even the Kikoho hardly did anything to Raditz except damage his armor.

If he had come to Kame House, we would have been killed too.
I don't know how we could win this.

Also, How dare he?

And perhaps your proposals could be a bit different. For instance, Chewys's ''If he had gone to...'' sounds already ok with me, I am not sure if it is indeed wrong. And maybe your last proposal could be ''I don't know how we could possibly win this''

Imagine how they'll feel when it's revealed that not only are Vegeta and Nappa a thing, but also that Cooler exists.

Oh, and just for the record, not to insult the DBM team in any way, but I'll always prefer what you did with Cooler. Him actually managing to be emperor of his universe is much better than lying to "daddy"... Just my own opinion of course.

Man, Yamcha is just utterly heartbroken... It must have been traumatizing for him to see Gohan brutally slain again, and we only saw the aftermath of it! We know that the Turtle School will be able to defeat Raditz!