Kaepernick is an incredibly frustrating guy to watch/root for. He does something like this nearly every other game that is just mind-blowing athletically. Other recent examples include his TD to Boldin against St Louis rolling to his left, his TD to Gore against Philly where he threw the ball back across his body off his back foot to the other side of the field, and his TD to Boldin in the NFCCG last year, which is maybe the greatest pure physical throw I've ever seen from anyone -- he threw a 35-yard jump-pass fastball on a line from mid-air with his feet off the ground! I've seen shortstops do that kind of thing in baseball, but never in football, and obviously a baseball is a lot easier to throw. Everyone forgot about that play after the game because 10 more important things happened in the 4th quarter, which is a shame, because it was utterly amazing.
Then he has games where he gets the deer-in-the-headlights look, can't adjust to blitzes, throws dumb interceptions, fumbles, takes stupid delay-of-game penalties, etc.