From what I can tell, the voice samples in that one section are calling out different colors of bombs:
"Shiro bomu" (white bomb)
"Aka bomu" (red bomb)
"Kuro bomu" (black bomb)
"Ao bomu" (blue bomb)
And of course, the other samples are "Bomber Man!", "Hyper Bomber!", "Speed Up!", and "Yatta!".
Of course, this is from someone who knows only a little bit of Japanese, so take it with a grain of salt...