Well, i don't know specifically since I've played it in English but, here's a few things;
In the main menu, "save" is missing translation.
"preferences" would be better translated to "opções"(options).
"Location" is missing translation, in the very first scene.
Some character titles are missing translation like "unknown" or "bodyguard".
In the prologue the cyborg says "minhas orelhas se danificam quando o grande urso ruge"("my ears shatter as the great bear roars") and that is just wrong, lol. They translated "ears" literally. "Ouvido" would be a better alternative to "orelhas" it would fit in much better in that context.
To summarize, PT-BR is a language which the context of the dialogues needs to be adapted to. Translating them literally won't make much sense to the reader. Or at least they won't get the message as you intend it.
I'm gonna replay it in portuguese, if something else comes up I'll let you know.