And it seems to legitimately have some kind of speech pattern, with inflection possibly informing meaning.
It's not just "ga ga pi" repeated over and over, there are repeating syllables and multiple combinations, like "ga ga ga pi ga!" with the emphasis on "pi" in that sentence.
It straight up has a genuine linguistic basis, lmao
I fucking love this show
So in the long run, the ga-ga-pis are not merely robot noises but they serve as the sentient robot’s own language with their Lulus.
Assuming it doesn't fumble- and sweet lord I am hoping against hope it does not- Brave Bang Bravern will be the best 12 episode series that I will be eternally bitter about not being a 30+ episode series.