In a new developer feature published by Nintendo, director Masahiro Sakurai and composers Noriyuki Iwadare and Shogo Sakai recount the creative choices behind Kirby Air Riders’ soundtrack during the game’s production. Their conversation, recorded during the development period and shared as Part 1 of a multi-part series, traces how the team chose orchestral textures, designed singable motifs for children, and assigned eight course tracks among the composers. The interview reveals concrete production details — from sample guidance and lap-length goals to weeks of iterative feedback — and explains why some ideas, including prominent vocals, were ultimately set aside. Taken together, the account shows how musical direction was used to shape the game’s identity and player memory.
Key Takeaways
- Three principal creators — director Masahiro Sakurai and composers Noriyuki Iwadare and Shogo Sakai — led the soundtrack effort for Kirby Air Riders, working from a preference for orchestral arrangements rather than typical racing genres.
- Initially there were eight course tracks; Sakai composed Mount Amberfalls, Waveflow Waters, Cavernous Corners and Floria Fields, while Iwadare handled Airtopia Ruins, Crystalline Fissure, Steamgust Forge and Cyberion Highway.
- Sakurai asked for melodies children could sing and a short, memorable “signature” motif because course laps are short; an optimal target length discussed early in development was about 1 minute 15 seconds per loop.
- Some tracks diverged from initial samples — Waveflow Waters returned with a Latin-tinged take despite a request to avoid that style — demonstrating a balance between director guidance and composer autonomy.
- Galactic Nova required extensive iteration (eleven rounds of revision across its two sections), whereas the game’s main theme was accepted on the first try.
- Iwadare at one point proposed vocalized lyrics including the phrase “Air Rider,” but Sakurai judged prominent English vocals would feel out of place and removed them from the final mix.
- Recording choices included intentionally selecting less-polished takes for a spontaneous feel (notably an improvised flute take) and sometimes building orchestral textures around sampled mechanical sounds for tracks like Steamgust Forge.
- Over 100 tracks from the Kirby Air Riders soundtrack are available in the Nintendo Music smartphone app for Nintendo Switch Online members, expanding how players can access the work post-launch.
Background
Kirby Air Riders’ soundtrack grew out of longstanding professional ties: Sakurai, Sakai and Iwadare had crossed paths on prior Nintendo and third-party projects spanning decades. Sakurai and Sakai previously collaborated at HAL Laboratory and worked together on Super Smash Bros. Melee (GameCube, released November 2001 in Japan, December 2001 in North America) and the original Kirby Air Ride. Iwadare’s resume includes the Grandia and LUNAR series and contributions to Super Smash Bros. Brawl (Wii, January 2008 in Japan, March 2008 in North America) and Kid Icarus: Uprising (Nintendo 3DS, March 2012), which established familiarity and trust among the trio.
For this project Sakurai intentionally steered away from genre expectations for racing games (Eurobeat, aggressive fusion) and instead sought orchestral, singable melodies that would linger after a single course run. That decision reflects a pattern in his direction: prioritize simple, memorable tunes that children can sing, thereby strengthening a game’s identity and player recall. The team also operated under confidentiality during early recruitment; several contributors described being approached without knowledge of the project title until later in the process.
Main Event
The interview details how Sakurai curated the music brief and how Iwadare and Sakai translated it into finished tracks. Sakurai collected sample music and course concept videos, then asked the composers to identify commonalities in the samples and produce original pieces that captured the intended tempo, instrument palette and atmosphere without directly copying melodies. Both composers said they often listened to those samples only once, then worked to clear the reference from their heads so the new compositions would remain distinct.
Assignment of material was collaborative: Sakai requested the more pastoral and acoustic courses and took four specific tracks (Mount Amberfalls, Waveflow Waters, Cavernous Corners, Floria Fields), while Iwadare opted for the remaining four (Airtopia Ruins, Crystalline Fissure, Steamgust Forge, Cyberion Highway). Several tracks changed direction during iterations — Steamgust Forge shifted from an expected electro template to a more orchestral treatment augmented with steam-machine sounds — and Cyberion Highway gained a conspicuous added melody after Sakurai found the initial submission rhythmically repetitive.
There were notable studio anecdotes. For Cavernous Corners, a flute solo was recorded with an improvisational take selected precisely because it sounded raw and spontaneous; the performer had prepared a handmade bamboo flute. For Airtopia Ruins the team rejected lighter proposals in favor of a somber medieval orchestral base to evoke a fallen sky kingdom. Sakurai frequently gave rapid, concise feedback — sometimes multiple times in a day — to accelerate final-stage revisions, and Sakai reported responding as early as 2–6 a.m. during peak creative bursts.
Vocal usage was debated: Iwadare experimented with sung lyrics including “Air Rider,” and Sakurai entertained the idea but ultimately removed foreground English vocals because they risked making certain courses feel like a DJ set rather than part of Kirby’s world. Overall, the production mixed precise direction (song length, signature melody requirement) with room for composers to surprise and propose alternative approaches.
Analysis & Implications
Sakurai’s insistence on orchestral, singable themes for a racing title marks a deliberate departure from genre conventions. Where many contemporary racing soundtracks lean on high-energy electronic genres to match vehicle speed, an orchestral palette reframes the player’s emotional response: it emphasizes whimsy, melodic memorability and cross-generational accessibility. That choice likely broadens the game’s appeal to families and long-term franchise fans who value melodic hooks over ephemeral background texture.
Asking for melodies that children can sing is not merely an aesthetic preference — it’s a design lever for retention and shareability. Signature motifs make courses more memorable and help build social recognition (players humming or recalling a phrase after playing). That design decision strengthens the game’s brand identity and can increase soundtrack streaming, merch potential, and live-performance opportunities for game music concerts.
The producers also show an awareness of mixing and context: vocals and strong foreground elements can be brilliant stand-alone but risk cluttering an active gameplay mix, particularly in dense trial modes like City Trial. The team’s caution about vocal prominence suggests an evolving best practice for interactive music design: ensure melodic distinctiveness while preserving in-game clarity and balance across levels.
Finally, the development workflow — direct communication between director and composers, rapid feedback cycles, and an explicit sample-to-original process — illustrates a more transparent model for AAA and mid-tier teams. It highlights how tight creative loops and respectful autonomy can both accelerate delivery and preserve musical originality.
Comparison & Data
| Composer | Assigned Course Tracks | Notable Facts |
|---|---|---|
| Shogo Sakai | Mount Amberfalls, Waveflow Waters, Cavernous Corners, Floria Fields | Chose nature/acoustic-styled courses; used improvised flute take |
| Noriyuki Iwadare | Airtopia Ruins, Crystalline Fissure, Steamgust Forge, Cyberion Highway | Handled electro/sequencer-styled concepts; proposed vocals for Cyberion Highway |
The table summarizes composer assignments and production notes. Early in development the team aimed for roughly 1 minute 15 seconds per lap so music could loop cleanly with course length; exceptions occurred (e.g., Galactic Nova, which is split in two and required a bridge to connect loops). Over 100 tracks from the game’s music are now distributed through Nintendo’s music platform for subscribers, indicating both the soundtrack’s breadth and Nintendo’s strategy for post-launch audio engagement.
Reactions & Quotes
Developers reflected on the balance between direction and musical independence; Sakurai emphasized clarity and brevity in notes, while composers praised the expedited feedback loop. Below are representative short quotations from the interview, each placed in context.
Before the quote: Sakurai described his brief to the composers — prioritize melodies that are easy for children to sing and memorable after a single run-through.
“A song that even a child can sing says a lot.”
Masahiro Sakurai, Director (context: design brief)
After the quote: That remark summarizes the soundtrack’s guiding constraint and is the clearest statement of why orchestral, melodic writing was chosen over genre-typical racing music.
Before the quote: Iwadare explained one surprising success and a creative compromise he proposed during production.
“I sang and included the lyrics ‘Air Rider! Air Rider!’ in a draft.”
Noriyuki Iwadare, Composer (context: Cyberion Highway draft)
After the quote: Iwadare’s anecdote illustrates how close the team came to using vocals prominently and why Sakurai ultimately judged that placement inappropriate for the game world.
Unconfirmed
- Full musician credits for every orchestral player and session contractor were not disclosed in the interview and remain unlisted publicly.
- Whether any of the rejected takes or alternate versions will be released in future soundtrack editions or special editions has not been confirmed.
- Details about the exact recording studios, exact dates of sessions, and full production budgets were not provided in the feature.
Bottom Line
The Part 1 interview provides a clear window into how Sakurai and two veteran composers translated a concise musical brief into a diverse, orchestral soundtrack for a modern Kirby racing title. The team’s insistence on child-friendly, singable melodies and orchestral timbres reshapes expectations for racing game music and reinforces the game’s identity across short, repeatable course runs.
For players and music fans, the practical upshot is both aesthetic and commercial: memorable themes increase recall and community sharing, and Nintendo’s distribution of more than 100 tracks via the Nintendo Music app signals a post-launch plan to keep the soundtrack in rotation. Future installments of the feature will likely clarify unreleased-session details and offer further technical breakdowns of select tracks.