"The only way we could say we were the best defense was to take down the best offense," said linebacker Bobby Wagner, the former Utah State star.
Seattle (16-3) was too quick, too physical and just too good for Denver. What was hyped as a classic matchup between an unstoppable offense and a miserly defense turned into a rout.
"We've been relentless all season," quarterback Russell Wilson said. "Having that mentality of having a championship day every day. At the end of the day, you want to play your best football and that is what we did today."
Punctuating Seattle's dominance were a 69-yard interception return touchdown by linebacker Malcolm Smith to make it 22-0, and Percy Harvin's sensational 87-yard kickoff return to open the second half.
When the Seahawks, up by 29 points, forced a Denver punt early in the third quarter, the 12th Man and there were legions of them in MetLife Stadium began chanting "L-O-B, L-O-B."
As in Legion of Boom, the Seahawks' hard-hitting secondary, part of a young team with an average age of 26 years, 138 days.
"This is an amazing team. Took us four years to get to this point, but they never have taken a step sideways," coach Pete Carroll said. "These guys would not take anything but winning this ballgame."
The loss by the Broncos again raised questions about Manning's ability to win the biggest games. He is 11-12 in the postseason, 1-2 in Super Bowls. After the game, he brushed off questions about his legacy.
"Certainly to finish this way is very disappointing. It's not an easy pill to swallow," said Manning, who threw for a record 55 touchdowns in 2013, two years after missing an entire season because of neck surgeries. "I don't know if you ever really get over it."
He never looked comfortable against a defense some will begin comparing to the 1985 Bears and 2000 Ravens other NFL champions who had runaway Super Bowl victories.
Seattle forced four turnovers; Denver had 26 all season.
All-Pro cornerback Richard Sherman left with a high ankle sprain in the fourth quarter. He celebrated on crutches.
"I hope we etched our names in the history books," Sherman said.
Wilson, who has an NFL-record 28 wins in his first two pro seasons, including playoffs, had a 23-yard TD pass to Jermaine Kearse late in the third quarter to make it 36-0.
Wilson also hit Doug Baldwin for a 10-yard score in the final period in what had become one of the most lopsided Super Bowls. For the fifth time in six meetings between the NFL's No. 1 offense and defense, the D dominated.
"It's all about making history," All-Pro safety Earl Thomas said. "This was a dominant performance from top to bottom."
Denver fell to 2-5 in Super Bowls, and by the end many of Manning's passes resembled the "ducks" Sherman said the All-Pro quarterback sometimes threw.
More Super Bowl coverage inside
• Linebacker Malcolm Smith is game's MVP. › B4
• Seattle's defense dominates Denver. › B4
• QB Manning, Broncos doomed by errors. › B5
• Seattle's pick-six among key moments. › B5