re: A good philosophical question: If you were the last person left alive on Earth?
Seeing as I'm already working too hard for my physical survival; I'd get REALLY depressed.
I'm not familiar with this movie/game/scenario but here's a brief synopsis.
First I would scream at the gods and get it out of my system.
Then I would pray to God and ask for forgiveness, then his help.
Then I'd go out to the wilderness and tell all those aliens who've been following me around, that it would be safe to show up now because no one's watching. (ROTFLMAO)
Then, after days, weeks, month of wandering in the wilderness pondering my existence, I'd find a pharmacy and prepare myself for a feast.
I'd hope to meet Bowser there, so we we could at least have one last very good conversation.
;~)