We are basing are Sushi character in part off of the main character of the series Samurai Jack by Genndy Tartakovsky. In Samurai Jack there is only one main character with no supporting characters. We liked the idea of a single character who would take on an enemy who would at first appear more powerful, but still be bested by the character whom the audience empathises with.
We also looked at the designs used for the sword in Samurai Jack. Ryan took a lot of influence from its design when modelling the sword.