The 26-year-old Samoan-Kiwi knocked out Flores in the third round igniting fresh hopes of a swift comeback to world heavyweight contention.
Former super heavyweight champion and trainer Sua Henry Schuster says Parker was ruthless at Christchurch's Horncastle Arena.
"It's good to see he brought plenty of attitude to the ring. His mindset was pretty good. The opposition is there to hurt you and it was good to see a change in his mindset."
"Trainers can only help but the last part of the story happens in the ring and it was good to see Parker finish on a high."
