Johnson also scored on a first-quarter 8-yard run and a 13-yard run in the third as Wayne avenged, once again, its lone loss from a season ago.
Johnson, who was expected to take over for graduated Josh Way as the Bulldogs primary tailback this year, played fullback due to an injury to their starter there.
He had about 12 carries, but Sharp hopes Johnson's carries will double soon.
The Bulldogs came back to beat Minco in the third round of the playoffs.
Still, beating Minco meant plenty for Johnson and his teammates.
“I'd never beaten Minco in the regular season,” Johnson said. “They're still pretty good and all week in practice, the coaches kept reminding us that if we didn't focus, they were going to beat us.”
If anything, Johnson sees a sharpened focus in the team coming off last season's championship.
“In all honesty, I don't know how any of us could go back to not playing deep in the playoffs,” Johnson said. “We've got so much community support and really a bunch of pressure on us. Every time we walk in anywhere around here, people ask about the team.
“Sometimes you get tired in games and you have to have a little extra motivation. That's what it is for us. I don't know how we could go back in somewhere around here knowing we lost. We don't want to let those people down.”