COLLEGE STATION, Texas -- Johnny Football and No. 10 Texas A&M's offense dominated as usual against SMU.
The difference on Saturday night was that the Aggies defense was solid, too.
Johnny Manziel accounted for 346 yards with three touchdowns in just more than a half to help Texas A&M cruise to a 42-13 win over SMU.
Texas A&M (3-1) was up 32-6 at halftime, and Manziel led the Aggies to a touchdown on their first drive of the third quarter before the Heisman Trophy winner went to the bench.
The defense, which struggled as it dealt with suspensions early this season, had given up 36 points a game through the first three games. Defensive coordinator Mark Snyder made some personnel changes this week to help the Aggies improve.
"We've still got some areas we've got to work on, but a much better game from our side of the ball," Snyder said. "We're still a work in progress, for sure, but as long as I keep seeing improvement each week I think we'll be fine."
It was a nice bounce-back game for Texas A&M after falling to top-ranked Alabama 49-42 last week.
"I think we learned some valuable lessons a week ago," A&M coach Kevin Sumlin said. "I think we can get a little bit more confidence coming out of this game with our defense."
Manziel had 244 yards passing with a touchdown and ran for 102 yards and two more scores.
"We tried a little of everything," SMU coach June Jones said of trying to slow Manziel. "He's an amazing player. You blitz him and he's accurate with the ball. You rush three, and he can scramble around and make it last forever. He's a great college football player and he's in the perfect system."
The Aggies have scored at least 40 points in each of their first four games for the first time in school history.
Former Texas quarterback Garrett Gilbert threw for 310 yards and a touchdown with an interception for SMU (1-2).
Despite the lopsided score, Texas A&M's performance was far from flawless. The Aggies missed three straight PATs in the second quarter and were penalized 13 times for 114 yards.
The Mustangs didn't play any cleaner, and piled up 16 penalties for 111 yards.
The Aggies took a 14-0 lead when Manziel sidestepped a defender before high-stepping over another one en route to the end zone on a 7-yard run later in the first.
Texas A&M recovered an onside kick and was driving again when a pass by Manziel was deflected and intercepted by Hayden Greenbauer. The Mustangs cut the lead to 14-3 when the ensuing drive resulted in a 42-yard field goal by Chase Hover.
Manziel's second 7-yard touchdown run made it 32-3 just more than three minutes later, but Bertolet missed again.
Jeremiah Gaines fumbled after a reception on the first play of SMU's next drive, and Everett scooped it up and returned it for the score. Sumlin had seen enough of Bertolet and brought in Josh Lambo to attempt the PAT. But holder Drew Kaser fumbled the snap, and the kick was blocked.
Sumlin said Bertolet and Lambo will compete for the job.
A 47-yard field goal by Hover as time expired in the second quarter left A&M up 32-6 at halftime.
Manziel had a nifty run on A&M's first possession after halftime. He evaded three defenders that had hands on him to dash down the sideline on a 20-yard run. Malena's 1-yard run two plays later -- and a made extra point by Lambo -- made it 39-6.
Lambo's 40-yard field goal extended A&M's lead to 42-6 near the end of the third quarter.
A 31-yard touchdown reception by Keenan Holman made it 42-13 early in the fourth quarter. Holman finished with 10 receptions for 133 yards.
adidas Men's Texas A&M Aggies Maroon Sideline Coaches PoloPrice: $44.97 Shop
Running back Devontae Booker had 124 combined yards and a touchdown and Utah spoiled Jim Harbaugh's Michigan coaching debut, beating the Wolverines 24-17 on Thursday night.
ESPN 300 running back Elijah Holyfield, the son of former heavyweight boxing champion Evander Holyfield, has decided to stay home and attend Georgia, he announced Friday.
Arizona star linebacker Scooby Wright will have an MRI after injuring his left knee in the first quarter of the Wildcats' season-opening 42-32 win over UTSA on Thursday night.
Miami reserve linebacker Al-Quadin Muhammad has been suspended for the season opener against Bethune-Cookman on Saturday for a violation of team rules, a source confirmed to ESPN.com
Trevone Boykin threw for 246 yards and a touchdown and ran for 92 yards and another score to help No. 2 TCU outlast Minnesota 23-17 on Thursday night.
All-American defensive end Shawn Oakman and safety Orion Stewart have been suspended for Baylor's season opener Friday against SMU for a violation of team rules, a school spokesman told ESPN.com.