My power would be chronological manipulation. So, I would panic and check myself into a hospital. Then maybe the FBI, CIA, or some criminal organization comes in to apprehend me for some purpose or another. This might trigger the usage of my powers for the first time. My control wouldn't be perfect, but hopefully good enough to escape and evade capture. When I've gotten full control, then I'd go back in time and find out who I was and what the heck happened to me. If the answer is particularly heinous (science experiment or whathaveyou), I'd probably then spend the rest of the video game (and perhaps a sequel or seven) trying to get my revenge. If it was just some weird quirk (like getting hit on the head with a radioactive meteor), then I'd probably build a new life elsewhere, living normally, using my powers in secret for my own personal convenience. Until a catastrophe stirs up a sense of responsibility in which case, I'd turn into a superhero. Or Doctor Who. Though if you really think about it, isn't Doctor Who a superhero?