Released for Nintendo Switch last month, Mario & Luigi: Brothership, the sixth installment in the Mario & Luigi series, has generally been well received by fans. The role-playing game innovates in terms of animation and mechanics but sits comfortably in the Mario canon in terms of our favourite hero plumber’s look. But that could have been very different.

When the developer Acquire first began exploring character designs for the game, it wanted to do something entirely new. That included making Mario and Luigi looked ‘edgier’ and more ‘rugged’. In the end, Nintendo reined the developer in because it was concerned that altering the iconic characters too much would alienate fans (also see everything we know about the Nintendo Switch 2)