Stop and smell the flowers! Miku gives us a cheerful street-side performance in this beautiful rendition of DECO*27's hit. Will Miku tell you her "love password"? Who exactly is the "baka"? All these questions and more answered in "Aikotoba".
— Website description
"Aikotoba" first appeared in Hatsune Miku: Project DIVA 2nd where it was available at the start of the game. It was also available in Hatsune Miku: Project DIVA Dreamy Theater 2nd with the exact same rhythm game and PV (albeit with updated high-definition visuals). "Aikotoba" is also featured in Hatsune Miku: Project DIVA Arcade where it was added to the game on February 24, 2011. When the arcade game was updated to Hatsune Miku: Project DIVA Arcade Future Tone, an Extra Extreme difficulty rhythm game chart for the song was added on March 20, 2018.
The song was later featured in Miku Flick, though the game has since been removed from the App Store on 29 September 2017. It also appears in Hatsune Miku: Project DIVA F 2nd, where it was one of the game's DLC that can be purchased from the PlayStation Store. Its PV was based from its earlier appearances but was slightly modified to include a Chance Time Success event. In Hatsune Miku: Project DIVA Future Tone, "Aikotoba" was included in the Future Sound song pack and its Extra Extreme difficulty chart was added later via a patch on April 19, 2018. It is also featured in Hatsune Miku: Project DIVA MegaMix, with its PV modified to include the ToonShader graphics, though it has the same rhythm game it has in Project DIVA Arcade in Arcade Mode.
Rhythm game info
Hatsune Miku: Project DIVA 2nd
|No. of notes||208||309||309||417|
|Score rank requirements|
(No. of Cools and Fines)
Hatsune Miku: Project DIVA Arcade/Future Tone/MegaMix
|No. of notes||225||296||354||402||433|
Hatsune Miku: Project DIVA F 2nd
|No. of notes||199||289||366||403|
Hatsune Miku: Project DIVA MegaMix
|No. of notes||235||351||475|
- DLC UPDATES; 4th BATCH. Retrieved on 15 August 2018. “Stop and smell the flowers! Miku gives us a cheerful street-side performance in this beautiful rendition of DECO*27's hit. Will Miku tell you her "love password"? Who exactly is the "baka"? All these questions and more answered in "Aikotoba".”
- Aikotoba at the Vocaloid Wiki.