Here is the entire list I came up with. Not sure why I remember that 49rs/ Bengels game as being one except maybe I blacked out for a week at the time. But yeah some real cheapened games in there. Except for maybe those three that rank among the all time greats.
Super Bowl IV – Chiefs 23 – Vikings 7
Super Bowl XVII – Washington 27 – Miami 17
Super Bowl XXV – Giants 20 – Bills 19
Super Bowl XXVIII – Dallas 30 – Buffalo 13
Super Bowl XXXIV – Rams 23 – Titans 16
Super Bowl XXXVI – Patriots 20 – Rams 17
Super Bowl XXXVII Bucs 48 – Raiders 21