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Project ONSOKU Stars Hatsune Miku and Sonic the Hedgehog

Kite StenbuckBy
Project ONSOKU featuring Hatsune Miku and Sonic the Hedgehog
Image courtesy of Sega and Crypton Future Media

Sega has launched Project ONSOKU, which features new collaboration songs featuring Hatsune Miku and Sonic the Hedgehog. The company also revealed that it will add the songs to its upcoming video game, Sonic Racing: CrossWorlds.

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The first song published is “Sai Love Jinsei Runner” by Kairiki bear, who also made the album cover in addition to the song’s composition. Nou also helped with the song’s illustration that features both Miku and Sonic.

Sega also published another trailer detailing the new Project ONSOKU. The trailer revealed that Sega will gradually reveal a new song every week following the grand reveal on Thursday, August 28, 2025. The Japanese press release revealed the following schedule:

  • September 1, 2025 – “We Are Picopico Hammers!!!!” by Cosmo@Bousou-P
  • September 8, 2025 – “Jet Black” by Yunosuke
  • September 15, 2025 – “Treasure Garden” by Ponchi
  • September 22, 2025 – “Denkou Sekka” by Camellia

Sega has been known for working closely with Crypton Future Media to publish Hatsune Miku rhythm games, such as Project Diva and Project Sekai: Colorful Stage. The company also revealed at Summer Game Fest 2025 back in June that it will add Miku as one of the guest characters in Sonic Racing: CrossWorlds.

Sega will add the new Hatsune Miku Project ONSOKU songs to Sonic Racing: CrossWorlds, which will appear worldwide for PS5, PS4, Xbox Series X, Xbox One, Switch, and PC on September 25, 2025. A Switch 2 edition of the game will also appear.

Kite Stenbuck
About The Author
Kite is a Japanese translator and avid gamer from Indonesia, Southeast Asia who learned the language mostly by playing Japanese games from the PS1 era. He primarily translates news about Japanese games and anime straight from Japan. After initially starting with a focus on Dynasty Warriors communities from the mid-2000s, he eventually joined Siliconera in 2020. Other than Dynasty Warriors, Kite is also a big fan of Ace Combat and other games featuring mechs, especially Gundam.