# Koichi Hayashida

Koichi Hayashida is a Japanese video game developer who has worked as a director, producer, and programmer on multiple games from Nintendo, notably the Super Mario series. He was the director of Super Mario Galaxy 2 (2010), Super Mario 3D Land (2011), Super Mario 3D World (2013, with Kenta Motokura), NES Remix (2013), and NES Remix 2 (2014). He was a producer of Captain Toad: Treasure Tracker (2014) and Super Mario Odyssey (2017).

## Game design

Hayashida began programming in fifth grade on the Commodore VIC-20. He began programming at Nintendo while the company was developing for the NES. He notably programmed for Super Mario Sunshine (2002). He was an assistant director on Donkey Kong: Jungle Beat (2004), and the level design director for Super Mario Galaxy (2007).
Hayashida was the director of Super Mario Galaxy 2 (2010). Hayashida and Shigeru Miyamoto developed a four-step process for the game's levels to teach a new game mechanic, titled kishōtenketsu, which derives from Chinese and Japanese poetry and manga writing. In the game version of kishōtenketsu, a game mechanic is introduced in a level, evolves to let players grow their skills, given a twist that makes the players think of the concept in a different way, and then concluded with a test that makes players use every concept they learned throughout the level. The technique has been used by Nintendo for numerous games since then.
Hayashida was then the director of Super Mario 3D Land (2011). To help his development team, he gave them "Miyamoto's Teachings": a book of quotations by Miyamoto, a more experienced designer who had begun to lessen his role at Nintendo. To make the game more approachable for less experienced players, Hayashida decided the game would technically end at its halfway point, when the story was over and the credits rolled, but there was a whole other half of more challenging levels. The game's development was delayed because of the 2011 Tōhoku earthquake and tsunami. To motivate the game's developers, who were previously separated by their different trades, Hayashida moved everyone into a common area to work more collaboratively.
Hayashida was a co-director for Super Mario 3D World (2013), directing alongside Kenta Motokura. He was the director of NES Remix (2013) and NES Remix 2 (2014). These games were first made for Wii U instead of the 3DS, partially because Hayashida was more familiar with the Wii U's architecture. He was the producer of Captain Toad: Treasure Tracker (2014) and Super Mario Odyssey (2017). He worked on the design of Super Mario Bros. Wonder (2023).

## Works

| Year | Title | Role |
| 1993 | Joy Mecha Fight | Director, programmer |
| 2002 | Super Mario Sunshine | Main programmer |
| 2004 | Donkey Kong Jungle Beat | Assistant director |
| 2007 | Super Mario Galaxy | Level design director |
| 2010 | Super Mario Galaxy 2 | Director |
| 2011 | Super Mario 3D Land | Director |
| 2013 | Super Mario 3D World | Director |
| 2013 | NES Remix | Director, programmer |
| 2014 | NES Remix 2 | Director, programmer |
| 2014 | Captain Toad: Treasure Tracker | Producer |
| 2017 | Super Mario Odyssey | Producer |
| 2023 | Super Mario Bros. Wonder | Game designer |