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[Vocaloid Rhythm Game] Best Popular Songs from Project Sekai: Masterpieces that Shine with Unique Personality and Distinctive Flavor

Project SEKAI is a smartphone rhythm game that’s especially popular among Gen Z, from teens to people in their twenties.

The game is a hot topic because you can enjoy top-quality hit songs by Vocaloid producers, brought to life through performances by original units and virtual singers like Hatsune Miku.

The synergy between the game’s worldbuilding and the diverse, dazzling tracks by Vocaloid producers and uniquely styled units offers wonderful encounters—not just for fans, but also for those who don’t usually listen to Vocaloid music.

This article introduces some of Project SEKAI’s most popular songs.

Be sure to check out tracks beyond your usual favorites, too!

[Vocaloid Rhythm Game] Project Sekai’s Best Popular Songs: Masterpieces Showcasing Unique Styles and Strengths (1–10)

moonlightHarumaki Gohan × Tatsuya Kitani

Moonlight / Harumaki Gohan × Tatsuya Kitani feat. Hatsune Miku & Kagamine Rin MV

This is one of the songs by the four-member unit Vivid BAD SQUAD.

Created by singer-songwriter Tatsuya Kitani and creator Harumaki Gohan, who also works in animation, this piece was released in May 2022 and quickly joined the ranks of hugely popular tracks.

It features a sultry tone that flows on in a steady, understated way.

You can sense emotions shimmering beneath the quiet.

The lyrics also reveal the relationships between the members of Vivid BAD SQUAD.

As the title suggests, it might resonate most when you listen at night.

Nikkori^^ Investigation TeamWONDERFUL★OPPORTUNITY!

Smiley ^^ Investigation Team Theme / Wonderlands x Showtime × Hatsune Miku [3D MV]
Smiley ^^ Investigation Team WONDERFUL★OPPORTUNITY!
Kagamine Rin/Len - Niccori^^ Survey Team Theme [One Opponent/Original MV]

This song was created by the music project WONDERFUL★OPPORTUNITY!, led by Jesus-P and Minus-P.

It was written specifically for Wonderlands x Showtime and released in 2022.

With its ultra-cute and catchy style, it’s a real energy booster.

A hallmark of the track is its fast-paced melody built around call-and-response parts that highlight each member’s personality.

It’s the kind of song you’ll want to sing together with friends during a fun karaoke outing.

Toward an infinitely graySorry

Towards Infinite Gray / 25:00, Nightcord at 25:00 × Kagamine Rin [3D MV]
Limitlessly toward gray
Toward an Endless Gray / Surii feat. Kagamine Len

A stirring number that sings of the fleeting nature of dreams and the resolve that “I’ve got to keep going anyway.” Created by the Vocaloid producer Surii, also known for the smash hit “Telecaster B-Boy,” it was written specifically for 25-ji, Nightcord de.

.

You’ll be drawn in by the wistful synth phrases and the low end that swells and spreads.

The melody, which carefully carries each and every word, is wonderful too.

From beneath the seemingly negative lyrics, a burning feeling of having taken a step forward overflows.

[Vocaloid Rhythm Game] Best Popular Songs in Project Sekai: Masterpieces Showcasing Unique Character and Strengths (11–20)

worldDECO*27 × Akita Horie (kemu)

Sekai / Ichika Hoshino × Tsukasa Tenma × Kanade Yoisaki × Hatsune Miku [3D MV]
Sekai DECO*27 × Akita Horie (kemu)
DECO*27 × Akita Horie (kemu) – Sekai feat. Hatsune Miku

A very refreshing rock number with a satisfying four-on-the-floor beat and guitar riff! It’s a collaboration released in 2020 by popular Vocaloid producer DECO*27 and Vocaloid producer Shota Horie, aka kemu, who is also active as the bassist of the band PENGUIN RESEARCH.

It’s one of the songs released as a theme track before the launch of Project Sekai.

The very positive lyrics—“Let’s head toward the future we’ve envisioned for ourselves”—bring a smile to your face.

Even when you’re feeling down, this song will make everything okay.

88☆彡marasy × Akita Horie (kemu)

88☆彡 / Wonderlands×Showtime × KAITO
88☆彡 Marasy × Akita Horie (kemu)
88☆彡 / Marasy × Akita Horie (kemu) feat. Hatsune Miku × KAITO

It’s such a light, uplifting piece that makes you want to dash off the moment you hear it! Wonderlands×Showtime’s “88☆彡” is a collaboration between pianist Marasy and Vocaloid producer kemu, also known as Shota Horie from Akita.

Released in 2022, it quickly became a hit.

The lyrics carry a bright message of “Let’s enjoy everything!”, perfectly matched by the melody.

By the time it ends, you can’t help but find yourself smiling.

By the way, the song ends exactly at 88 measures.

There may be other hidden tricks too… Try and find them!

KINGKanaria

KING / Tsukasa Tenma, Rui Kamishiro (Wonderlands x Showtime)
KINGKanaria
【GUMI】KING【Kanaria】

This song “KING,” sung by Tsukasa Tenma and Rui Kamishiro from Wonderlands × Showtime, is a track by Vocaloid producer Kanaria.

The original version sung by GUMI was posted in 2020 and became an explosive hit.

The sound seems to move along coolly yet somehow feverishly, and before you know it, you’re drawn right in.

One of its charms is the sultry melody line.

It’s a masterpiece that shows many different expressions depending on the singer.

Be sure to turn up the volume and give it a listen!

Stellajin

Stella / Leo/need × Hatsune Miku
Stella-jin
Stella (feat. Ichika Hoshino, Saki Tenma, Honami Mochizuki, Shiho Hinomori, and Hatsune Miku)

This is an original piece written for the unit Leo/need.

The song is by Jin, also known as “Nature Enemy P,” and was released in 2020.

It’s a refreshing rock number that pairs a driving band sound with the sparkling tones of piano.

After the end of the first verse, it modulates into the pre-chorus, then opens up into a liberating chorus! The strong resolve embedded in the lyrics—“We’re moving toward our dreams”—comes through in the arrangement as well.

Give it a listen when you want a boost of positivity!