The memes are all fun and so on but seriously, Joyboy stored some COC Haki inside a robot. FOR 800 YEARS.
It was so powerful, it sent ALL Gorosei's asses back to Mary Geoise. Shanks had to unleash a direct Haki wave with his sword to paralyze Greenbull a bit. Meanwhile 800 old Haki managed to submit other top tiers so easily like that. Joyboy was truly built different.