It was a short kickoff (obviously since it was a TD but just 85 yards), so Corley had to run up to catch it. That meant he caught it on the run at full speed.
The rest is history. Sorry, can't remember if it was smooth sailing or if he had to weave in and out, break tackles, where he might have juked out the kicker making him look silly. I just remember him fielding it and getting in the end zone.