The Canadian was diagnosed with Hodgkin's lymphoma in December, and finished chemotherapy treatment just two months ago.
Parrot's combined tally of 91.00 sealed the sixth, and perhaps most significant, X Games title of his career.
A huge cab 1620 on his first run was followed up with a front side triple-cork 1440 with a mute grab at the Telenor Arena in Oslo, Norway.
From treatment, to top of the world
With only two months to prepare for an elite competition, Parrot worried those closest to him that he was rushing his comeback.
The 25-year-old attributed his latest X Games title to his team, including doctors, a psychologist, a nutritionist, coaches and his family and friends
Following his run, Parrot wrote on his Instagram that it was 'honestly one of the best days of my life!!!'
On that day in Korea, he pipped compatriot Mark McMorris to second-place, who finished fifth in Parrot's comeback X Games in Norway.
Parrot will now get to rest and recover before his next competition in December.