Whirligig

a.k.a. Professor Kairo

Creator of the highly successful Marble Blast mods "Marble Blast Powered Up" and "Quaternion". Currently working on a new separate marble game called "Filtration".

Competing with Threefolder for the title of resident furry. Occasionally meows.
An expert at finding ways to turn conversations sexual. Has an entire subreddit devoted to their quips: /r/whirlijokes.
During the development of Quaternion, they would try to stream weekly updates on Friday, which often got moved to Sunday and still usually had nothing in them.
Known for camping one level for months at a time, playing it when they're bored and have free time. It started with King of the Mountain, and then Tube Highway, where they got the world record in January 2018, on their 911th(!) finish on the level. The list finishes with Sky High Circuit, as of October 2018.
Inventor of the "Flaccid Penis Computer" (see this page).
Avid Chicago Cubs fan; them and Eguy are known to dominate voice chats with baseball references that no one else gets. Created a fantasy baseball league simulation program, featuring teams made up of fictional characters. Other members of the community participate in it by drafting players to their team, and then Whirligig commentates the "games" as they happen on voice chat.