could green dude be modeled after a Japanese kappa. Maybe he is an armless kappa. They both have a beak and the white line on the head might be a plate. :
Kappa | Nango
Twitch emotes list: the meaning of Twitch characters, explained - Polygon
What is a Kappa? - YouTube
Caliverse Twitterissä: "The hover hand is strong. I met the kappa guy #kappa http://t.co/OV4z4Szw52" / Twitter
Kappa Guy in Real Life – Populära Jackor | Life Meme on ME.ME
Kappa | Know Your Meme
Josh DeSeno on becoming Twitch's biggest icon as Kappa | Metro News
Kappa | Know Your Meme
Twitch al Twitter: "A Kappa is born. Twitch founder @justinkan stopped by for a talk about Twitch history and more! Full talk: https://t.co/icD4ZGVjOq https://t.co/Fug1aP6nIt" / Twitter
Kappa Mikey Mii for the very few people who know of this amazing dude 57RVFD2 : r/Miitopia
Kappa emote meaning, history and origin
DUCK DUDE】【Kappa】ニット帽 ニットキャップ 2点セット - メルカリ
Josh DeSeno on becoming Twitch's biggest icon as Kappa | Metro News
KAPPA - 90's Logo Tee - dude online
the only guy who can carry eg Kappa : r/AdmiralBulldog
Kawamatsu | One Piece Wiki | Fandom
Miyo Rokujushi, Eight Trigrams and 64 Hexagram : r/Jujutsushi