The few things I could make out (I don't know Japanese and this is seriously just from phrases I know from hearing a lot)
The beginning is like:
Akkuman: Who the hell are you?
Freeza: blah blah blah suupa saiya-jin (basically just talking about "the super saiyan")
Akkuman: What a second…? Super....Saiyan... whu?
Freeza: (here he calls him by name, Son Goku)
Akkuman: He...hehahahahahaha! So that's it! Hahahahahah!
And this is pretty much the one line later on that I know:
Oresama wa seigi no akuma, Akkuman-sama da!
something like:
"I'm the great, devil of justice, Akkuman-sama!" (this is one of my favorite lines)
And the first thing he says when he finishes the first 3 off is "BAD END."
The only other thing I could make out was him mentioning his "technique" to King Cold, who asked what it was. "The killing technique, Akkumaito Kousen." And he says something about it blowing up the person it hits, blah blah.