InstaSmash is a tournament for smash bros instagrammers. The requirement was over 1k and they had a total of 800k followers.

Smashing the moment you meet. Attraction so deep you can't resist immediately screwing

Instasmash is the most popular smash bros tournament on Instagram. It's held once-twice a year and invites 100 nintendo/smash bros instagrammers. The main host is Instagrammer @smashbrosmemes but many more staff are involved such as streamers and artists.