Project Sekai Releases Full-Size 2DMV for Hide and Seek Sekai Ver.
Sega and Colorful Palette released the full-size 2DMV for Hide and Seek Sekai Ver. on the official Project Sekai YouTube channel on August 21, 2026. The video features Hatsune Miku and Leo/need singing the song, which was written and composed by 19 -iku-. Hide and Seek is available as a rhythm game song through Music Cards at the Music Shop in Project Sekai: Colorful Stage! feat. Hatsune Miku for iOS and Android.