Appears on releases
| # | Title | Length | Track artist | Release title | Country/Date | ||||
|---|---|---|---|---|---|---|---|---|---|
| Official | |||||||||
| 1.1 | 迷宮のイデア | 4:55 | 牧瀬紅莉栖 (cv.今井麻美) | STEINS;GATE FUTURE GADGET COMPACT DISC 6 Character Song |
| ||||
| 3.10 | 迷宮のイデア | 4:54 | 牧瀬紅莉栖(cv.今井麻美) | The Sound of STEINS;GATE 魂 |
| ||||
| Pseudo-Release | |||||||||
| 1.1 | Meikyuu no Idea | 4:55 | 牧瀬紅莉栖 (cv.今井麻美) | STEINS;GATE Future Gadget Compact Disc 6 Character Song (romaji) | |||||