Portugal came from behind an unprecedented three times to secure the point they required against Hungary and advance to the knockout stages, despite not winning any of their three matches.
Ronaldo scored goals two and three, one an impressive flick and the other a powerful header, to help his nation secure a tie with Croatia.
But following the match, Ronaldo only accepted questions from UEFA official channels and refused to listen to any queries from the general media.
“It was an insane match,” said Ronaldo, who had thrown a reporter's microphone into a lake the previous day following the criticism levelled at him for failing to score in the draws with Iceland and Austria.
“Three times we were in dire straits. Three times we were going home. But we have come back and we are in the last 16.
“We haven't qualified the way we wanted to and after seeing the highlights of Croatia's victory over Spain, we know they are a great team. But we will look them in the eye.”
Ronaldo was clearly delighted with the qualification and posted a picture of his trademark goal celebration to his Twitter account following the match.
However, he did not caption the image.
There was added joy for Ronaldo as he broke yet another record during the draw with Hungary.
He has become the first player to score in four European championships after scoring at the tournament in 2004, 2008, 2012 and 2016.
After failing to find a way past Iceland and then missing a penalty against Austria, the pressure was on Ronaldo going into the final Group F clash.
And with Portugal trailing 2-1, he stepped up to the plate, turning home Joao Mario's cross with a stunning backheel.
Hungary managed to regain the lead before Ronaldo headed home Mario's cross for his second.
As a result, Portugal managed to scrape through qualification and set up a tasty-looking tie with Croatia in the last-16 of the competition after finishing second in their group.