(Warning: the following video contains spoilers for BioShock Infinite.) Perhaps you remember seeing BioShock Infinite at E3 2011. What you might not remember is that it looked totally different.
Yes, the critically-acclaimed shooter has changed quite a bit over the past couple of years. Blame it on the rigors of development, or maybe it's just director Ken Levine's creative style. Maybe Levine and his team at Irrational Games just intended to show off what BioShock Infinite could look like, not what it would look like.