As has already been said, if you're playing the game with translation, then the pronouns won't matter. But here's some Japanese trivia. Not trying to contradict, but here is some more accurate information from a fluent speaker.
Ore is used by men and boys, to refer to themselves. Not exactly prideful though it can be used in that context as well, but is generally common among friends or with casual speech.
Boku is more polite and humble, but is not feminine... this is what young men say to other people, especially people who are older or have higher social status.
Watashi is used in writing, and mixed with other variants but is probably the most neutral.
Jibun is, as was already said, refering to the self, whatever form that may take whether that be first or third person.
Honestly though, trying to equate things in English just doesn't work.. because it's far less clear cut than what I just listed.
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