The Filipino star saw a 15-fight unbeaten run come to an end in June 2012 when he was on the wrong end of a split decision against Timothy Bradley.
The 34-year-old was then sensationally knocked out in the sixth round in December 2012 by Juan Manuel Marquez, leading to speculation he could consider retirement if he is beaten by Rios when they go head-to-head in Macau on November 23.
Pacquiao has stressed he won't call time on his career even if he is beaten by the 27-year-old American, but he feels he needs to win in style to prove he is still a top level fighter.
The former pound-for-pound king has revealed he intends to use a similar plan to the one he implemented against British star Ricky Hatton in 2009, where Pacquiao secured a second round stoppage victory.
"I want to prove to everyone that I can still fight like the old Manny Pacquiao. I need to restore the public's confidence in me and my abilities," Pacquiao told World Boxing News.
"It's important that this be an impressive victory. I have already begun to visualise my fight with Rios.
"My game plan for Rios will be similar to the one I had for Ricky Hatton. That fight didn't go long enough for me to unveil everything. Maybe this time I'll be able to show more of that plan - maybe.
"Rios is an aggressive fighter. He likes to fight on the inside and toe-to-toe. He likes to fight, period. It will be a very entertaining fight for the fans. It will be all-action. A real fight and not a track meet. I am 100% confident of winning this fight."