User blog comment:BunsenH/Monsters: boy or girl? Male or female?/@comment-27661991-20170715185644/@comment-27661991-20170716030343

Yeah, that's why I figured it only as 'may'. An argument in favor seems to be that he's recalling a discussion in which they may have referred to Shugabush as a 'he'. However, it's also entirely possible that Kristian is merely making his own assumption and that's what ended up in the article. In-game, and promotional material-wise, gender is definitely left up in the air :)