Ronaldo's hat-trick helped Juve secure their first ever come back from a two-goal deficit in a UEFA Champions League knock-out tie.
After a 2-0 defeat to Atletico Madrid in the first-leg, his club-record move from Real Madrid in the off-season came into question.
But once again, the five-time Ballon d'Or winner rose to the occasion and dragged the Serie A champions into the quarter-final of Europe's elite club competition.
It is almost four years since a team featuring Ronaldo was knocked out of the Champions League and he could still win the competition for a fourth consecutive season.
"This was why Juventus brought me here, to help do things that they have never done before," he told Sky Italia after the game.
"It was always going to be a special night and it was - not only for the goals but for the team.
"This is the mentality you need to win in the Champions League. We enjoyed a magical night. Atletico were a difficult team but we were strong too. We will see what will happen."
Ronaldo has now scored 18 goals in his past 14 Champions League knockout appearances remains on course for a fourth consecutive Champions League crown.