Tanton and Walsh worked on a pitch deck, and principal concept artist Dan Hoang created images featuring colourful, bean-shaped characters racing on an obstacle course in the sky. Tanton explained that Hoang's character designs helped shift the focus of the game away from the obstacle course itself, to the characters.[61][62] With the pitch deck completed, Tanton pitched the game to 10 different publishers at the 2018 Game Developers Conference. Six months after Devolver Digital agreed to publish the game, development began.[58][61]