I think in the untranslated Marisa line she is saying something like "There will be hurt-hurt if you go on like this," threatening Mister Wall, essentially, but my Japanese studies never got very in-depth and I am also guessing on the slurred syllables
Why! Wwwhyyyy!? That'sh tewwible! It'sh all big shis'sh fault!!Why Maacha!? Maacha hash no weshponshibiwity!Pu~ff!Puff!Going home, going home!No mwore!Mishter wall gech out of the way eajy.
Don'ch do thish to Macha.Soo? How do you fweel? Big shistah's puffpuff is tewwifying right?I'm angwry yknow! We're angwy!