Overview
Treasure Chest Expedition is an original instrumental track composed and arranged by 7mai for maimai DX CiRCLE PLUS, released on March 19, 2026. The song centers on a lighthearted treasure-hunt adventure set during a "Circle Festa" event: its in-game flavor text describes three characters exploring puzzles and activities, finding a key, and opening a chest to discover what lies inside. At a brisk 200 BPM and running 2 minutes and 9 seconds, the track sustains an energetic, exploratory mood with no vocals or lyrics. The background movie was produced by the duo マスティ (Masti) and たかくら (Takakura), visually reinforcing the treasure-hunt narrative. In the game, the song is unlocked by accumulating 400 km of travel distance in the Tricolo Area 2 (トリコロちほー2), sitting between the area songs Aides and ソテリア in the progression. Its Expert chart was designed by アマリリス (amaryllis), while the Master chart, level 13+ with a 13.7 constant and 832 notes, was crafted by せんめともり (cementmori), whose design stands out for its dense note count and a notably high 55 Break notes. Treasure Chest Expedition has not appeared in any music game outside the maimai series.
Videos
Charts
This song requires certain conditions to be playable.
DX
BASIC
5(5)
233 notesDesigner: -|Tap 197Hold 13Slide 4Touch 17Break 2
ADVANCED
8+(8.6)
381 notesDesigner: -|Tap 355Hold 3Slide 8Touch 10Break 5
EXPERT
11(11)
616 notesDesigner: アマリリス|Tap 467Hold 56Slide 37Touch 28Break 28
MASTER
13+(13.7)
832 notesDesigner: せめんともり|Tap 645Hold 41Slide 79Touch 12Break 55
Trivia
- Treasure Chest Expedition is unlocked by reaching a cumulative 400 km of distance in the Tricolo Area 2 (トリコロちほー2), a progression zone introduced in maimai DX CiRCLE PLUS. It is bookended by the songs Aides (preceding) and ソテリア (following).
- The background movie was produced by the duo マスティ (Masti) and たかくら (Takakura).
- The track is entirely instrumental with no vocals or lyrics, running 2 minutes and 9 seconds at 200 BPM.
- The Master chart, designed by せんめともり, contains 55 Break notes, the highest Break count of any difficulty for this song and a characteristic emphasis of this charter's style.
- The Expert chart, designed by アマリリス, features a balanced 616-note layout with 28 Touch notes and 28 Break notes at level 11.
- The song's in-game flavor text reads: 'Change your style and head out on a treasure hunt! The space where Circle Festa is held is full of activities and events. Today, the three head out on a puzzle-solving and fun treasure search. What kind of treasure could be inside the box they opened with the key they found?'
- Treasure Chest Expedition has no appearances in any music game outside the maimai series.
- The Basic and Advanced charts do not have a credited notes designer.
FAQ
- Who composed Treasure Chest Expedition for maimai?
- The song was composed and arranged by 7mai, a creator contributing original tracks to the maimai series.
- What version of maimai did Treasure Chest Expedition debut in?
- It first appeared in maimai DX CiRCLE PLUS, released on March 19, 2026.
- How do I unlock Treasure Chest Expedition?
- The song is unlocked by reaching a cumulative distance of 400 km in the Tricolo Area 2 (トリコロちほー2) in maimai DX CiRCLE PLUS.
- What difficulty levels are available for Treasure Chest Expedition?
- The DX charts span Basic (level 5), Advanced (level 8+, constant 8.6), Expert (level 11, constant 11.0), and Master (level 13+, constant 13.7).
- Who designed the charts for Treasure Chest Expedition?
- The Expert chart was designed by アマリリス (amaryllis) and the Master chart by せんめともり (cementmori). No designer is credited for the Basic and Advanced charts.
- Does Treasure Chest Expedition have lyrics?
- No, the track is fully instrumental with no vocal or lyrical content.
- What is the theme of Treasure Chest Expedition?
- The in-game flavor text describes a treasure hunt during a Circle Festa event where three characters solve puzzles, find a key, and open a chest to discover its contents.
- Is Treasure Chest Expedition available outside Japan?
- According to the game data, the song is currently available only in the Japanese region (JP) of maimai DX.
- Who created the background movie for Treasure Chest Expedition?
- The background movie was produced by the duo マスティ (Masti) and たかくら (Takakura).
