Each character has at least one voice trailer, with a few spoken lines; here, I've translated all of them (separated by character; characters with both a regular and a trap reaction trailer are grouped together by character!).
(Note that this does not include all character trailers on the official channel, just the ones that fit into the broad categories of initial trailers, trap reaction trailers, and phantom illusion trailers; they follow a particular pattern, hence their being combined here.
(The videos are embedded, so in the interest of not loading 100 youtube videos and crashing your browser, they are separated into separate pages.)
Akan Yatsura
Suiseki Iori
Original Trailer
We'll be showin' you what hiphop's all about from here on out! Burn it right into your eyes~!
Ahahaha! Well, ain't that cool~?
Trap Reaction Trailer
We're gonna go out and show 'em that there's no one who's got more spirit than us!
Those bastards... I swear, I'll make them pay for this.
Phantom Trailer
Well, it's a festival, ain't it? Better enjoy it!
We're gonna go out and show 'em that there's no one who's got more spirit than us!
Gaho Zen
Original Trailer
Wonderful; that's the spirit! I'm cheering you on! If there's anything I can do to help you out, just ask, whatever it is!
Man, I did it again... why am I always like this?
Trap Reaction Trailer
Let's go all-out in this battle, fair and square! We'll show you proof that Akan Yatsura are number one!
I'll do anything. Even... if it means getting my hands dirty.
Phantom Trailer
Let's go all-out in this battle, fair and square!
We'll win this fight!
Masaki Hokusai
Original Trailer
Kitty. There was a kitty over there. ... I'm gonna go look for it.
If you're going to do this. Then you're going to have to go through me.
Trap Reaction Trailer
I have to protect my precious family.
Animals were the only ones who didn't look at me with judgment. They were the only ones who always stayed by my side.
Phantom Trailer
Ah. A kitty. ... cute.
I have to protect my precious family.
Ito Satsuki
Original Trailer
ALRIGHT! Let's get them pumped the fuck up! We'll show 'em how nobody can come close to our level when it comes to rap!
Hey, I'm not tryin' to pick a fight with you! Ain't you the one trying to pick a fight with me?
Trap Reaction Trailer
If I'm putting my life on the line, if it's for Aniki's sake, then it's worth.
G-goddammit... why? Why'd the old man and everyone else have to get killed!? Why!?
Phantom Trailer
If I'm putting my life on the line, if it's for Aniki's sake, then it's worth.
Don't underestimate a man's spirit*! WHAHAOOO!
*This wording specifically refers to chivalrous spirit -- protecting the weak, fighting the strong -- and has a very strong yakuza implication.
Maruyama Reo
Original Trailer
Yaaay! I'm the best! Hey, aren't I amazing? I'm amazing, right? Ehehe~!
I do hiphop for my own sake... no, I do it for everyone's sake.
Trap Reaction Trailer
Ehehe. Everyone, you came to see super-cutie Reo-kun, didn't you~?
Everyone... hey, wake up... you've gotta wake up...!