Overview
Tondemo Wonders (トンデモワンダーズ) is a high-energy Vocaloid track by producer sasakure.UK, originally commissioned for the mobile rhythm game Project Sekai: Colorful Stage! feat. Hatsune Miku. In Project Sekai, the song was written for the unit Wonderlands×Showtime and features both the unit's human vocalists and the VOCALOID characters Hatsune Miku and KAITO. The maimai DX version preserves the original VOCALOID vocal arrangement by Miku and KAITO.
The title is a compound wordplay, "tondemo" (from "tondemonai," meaning absurd or outrageous) fused with "Wonders", fitting the song's playful, chaotic lyrics that celebrate imperfection, laughter, and a childlike sense of wonder. The instrumental features a brisk piano-driven melody with Kishida Yuuki on keyboards, punctuated by sasakure.UK's signature glitch-pop production style.
In maimai DX BUDDiES, Tondemo Wonders arrived as part of the niconico & VOCALOID genre, bridging the two major Vocaloid rhythm-game franchises. Its Master chart, designed by Luxizhel at level 13+ (constant 13.6), is known for dense Tap patterns and a high note count of 784, while the Expert chart by みぞれヤナギ offers a 10-level introduction to the song's energetic structure. The song also appears in CHUNITHM SUN and ONGEKI Re:Fresh, making it one of the cross-title tracks shared across all three SEGA rhythm game platforms.
Videos
Charts
DX
BASIC
3(3)
167 notesDesigner: -|Tap 133Hold 3Slide 6Touch 21Break 4
ADVANCED
7(7)
296 notesDesigner: -|Tap 241Hold 17Slide 6Touch 22Break 10
EXPERT
10(10)
457 notesDesigner: みぞれヤナギ|Tap 321Hold 76Slide 16Touch 24Break 20
MASTER
13+(13.6)
784 notesDesigner: Luxizhel|Tap 518Hold 91Slide 88Touch 41Break 46
Trivia
- Tondemo Wonders was originally written for Project Sekai: Colorful Stage! feat. Hatsune Miku, specifically for the in-game unit Wonderlands×Showtime. The Project Sekai version is sung by the unit's four human voice actors plus KAITO, while the original VOCALOID version features Hatsune Miku and KAITO.
- The Master chart in maimai DX was initially level 13 at the BUDDiES launch but was upgraded to 13+ (constant 13.6) starting with the BUDDiES PLUS update.
- The song appears in all three current SEGA rhythm game lines: maimai DX BUDDiES, CHUNITHM SUN, and ONGEKI Re:Fresh, making it a notable cross-title track from the Project Sekai collaboration.
- Two remixes exist, a self-remix by sasakure.UK and a band version by 有形ランペイジ (Yūkei Ranpēji), both included on a CD bundled with the トンデモワンダーズ ササクレイション公式ファンブック (Tondemo Wonders Sasakure-ition Official Fan Book) art book.
- The music video was produced by APO+ and features vibrant, surreal visuals matching the song's chaotic and playful tone.
- Keyboardist Yuuki Kishida contributed live instrumental performance to the track, adding a real-piano texture beneath the electronic arrangement.
- In-game achievements (でらっくすコレクション) include lyrical references: 'ハイになる？廃になる？はい、とは言えな～い！' (earned by playing Tondemo Wonders and ネトゲ廃人シュプレヒコール in the same credit) and 'Ω＼ζ°)ﾁｰﾝ' (earned for a 1 MISS run), as well as 'まだまだ一緒しよ?の魂胆です' for FULL SYNC+.
- The lyrics are filled with wordplay and puns, such as 'エビバディ→解体！' (everybody → dismantle!), mixing Japanese and English phrases and playing with homophones throughout.
- In the Asian version of maimai DX, Tondemo Wonders was added on March 29, 2024, while the Chinese version (舞萌DX 2024) received it on March 5, 2025.
- The song's in-game runtime is approximately 2 minutes and 1 second, typical for a Vocaloid rhythm-game commission.
FAQ
- Who composed Tondemo Wonders?
- Tondemo Wonders (トンデモワンダーズ) was composed, arranged, and written by the Vocaloid producer sasakure.UK. Keyboardist Yuuki Kishida also contributed live instrumental performance.
- What game did Tondemo Wonders originally appear in?
- Tondemo Wonders was originally commissioned for the mobile rhythm game Project Sekai: Colorful Stage! feat. Hatsune Miku, where it was written for the unit Wonderlands×Showtime. It later crossed over to maimai DX BUDDiES, CHUNITHM SUN, and ONGEKI Re:Fresh.
- What difficulty is the Master chart of Tondemo Wonders in maimai?
- The Master chart is level 13+ with a difficulty constant of 13.6. It was originally level 13 at the BUDDiES launch but was upgraded to 13+ starting with the BUDDiES PLUS update.
- Who designed the charts for Tondemo Wonders in maimai?
- The Expert chart (level 10) was designed by みぞれヤナギ (Mizore Yanagi), and the Master chart (level 13+) was designed by Luxizhel. The Basic and Advanced charts have no credited designer.
- What vocalists are featured in Tondemo Wonders?
- The original VOCALOID version heard in maimai features Hatsune Miku and KAITO. In Project Sekai, the song is additionally sung by the voice actors for the Wonderlands×Showtime unit.
- When was Tondemo Wonders added to maimai?
- Tondemo Wonders was added to maimai DX BUDDiES on December 9, 2023 in Japan. The Asian version received it on March 29, 2024, and the Chinese version (舞萌DX 2024) on March 5, 2025.
- What does the title Tondemo Wonders mean?
- The title combines 'tondemo' (from 'tondemonai,' meaning outrageous or absurd) with 'Wonders,' reflecting the song's theme of embracing chaos, imperfection, and childlike wonder with a playful, nonsensical energy.
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