Tua Tagovailoa has thrown for 469 yards and six touchdowns, four of which came during a spectacular fourth quarter, and Miami rallied from a 21-point deficit to beat Baltimore 42-38 in the NFL.
Tagovailoa's seven-yard touchdown pass to Jaylen Waddle with 14 seconds left completed the hosts' incredible comeback after the Dolphins trailed 35-14 with under 13 minutes remaining on Sunday.
"This just shows the resiliency of our team," Tagovailoa said.
"You look at the big picture of it, the confidence goes up."
Miami overcame a spectacular performance by Lamar Jackson, who threw three first-half touchdown passes and then gave the Ravens their big lead with a 79-yard TD run in the third. Jackson threw for 318 yards and three touchdowns and finished with 119 yards on nine carries. He became the first quarterback in NFL history with both a touchdown pass and a touchdown run of at least 75 yards in the same game.
Kansas City and Tampa Bay join Miami as the only other 2-0 teams. The Chiefs held on to beat the Los Angeles Chargers 27-24, while Tom Brady helped the Buccaneers to a 20-10 victory over the New Orleans Saints.
Patrick Mahomes threw for 235 yards with two TD passes for KC and Brady, who had lost four straight regular-season meetings with the Saints, finished 18 of 34 for 190 yards against their NFC South rivals.
Cincinnati's Super Bowl hangover continues, going down 20-17 at the Dallas Cowboys thanks to a 50-yard Brett Maher field goal as time expired.
The Bengals are the first defending AFC champions to start 0-2 since the Denver Broncos in 1999.
"It's a long season ... We're just going to take ownership of these losses," coach Zac Taylor said.
Elsewhere, the Green Bay Packers beat the Chicago Bears 20-10, the Arizona Cardinals scored a 29-23 overtime win at the Oakland Raiders, and the Rams held on to defeat the Atalanta Falcons 31-27 in Los Angeles.