2:34 I think I found the reason why in Kinnikuman Muscle Grand Prix, Kinnikuman Soldier's announcment is so unenthusiastic They might have lost the file used in that game and used his announcer file from this game as a placeholder. it sounds super similar.
I know this is unlikely, but would you be able to translate the extra conversations in the PSP remake that aren't in the original Ps2 version of the game? The ones involving Kinnikuman Soldier/Ataru, Kendaman, and Screw Kid?
After watching enough Japanese content you start to pick up on the feel of the conversion and guess it. But yes I still want to know exactly. Perhaps there is a fan translation.