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No, Mirror Force was not in Dark Crisis at all.
Dark Mirror - 2007 is rated/received certificates of:
Australia:MA (2009)
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Yes, you can see yourself in a mirror in a completely dark room if your eyes have adjusted to the light yet.
A dark mirror is commonly used for scrying (looking into the future). A dark mirror however, is not the same as a regular mirror.
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Specifically, it is called enoptromancy. Generally, it can be called scrying.