Yuji Naka, co-producer of Sonic the Hedgehog, has moved into the realm of indie games following the disappointing release of Balan Wonderworld this year.

By translator VGC, Today (September 17th), 56-year-old Naka tweeted a fan’s birthday wish and then announced that she was working on a small indie mobile game developed using Unity.

“Recently, I’ve started learning how to program. I’m working on a simple game for smartphones using Unity. I’m making it myself, so it’s not a lot, but I enjoy programming. That’s it. I hope you can play with the app once it’s available. “

Naka left his position at Square Enix shortly after the studio’s dissatisfied release of Balan Wonderworld in April of this year. The game, directed by Naka himself, received overwhelmingly negative reactions from critics and fans. Naka had previously told IGN that the game was his “one chance” to create a platformer for publishers.

At the time of the title’s release, IGN reviewed Balan Wonderworld at the time of release and gave it as low as 4/10. In our game verdict, we said that “halfway platform and improper one-button design” unfortunately led to “complete boredom.”

In June, Naka told fans he couldn’t talk about why he left Square Enix, even though he added he wanted to be able to do it someday. The famous Sonic producer also mentioned that he was considering retiring at the age of 55. It’s unclear whether Naka’s departure was his decision or Square Enix’s decision.

Little is known about the Unity-based mobile project Naka is currently working on, but fans hope it gives programmers the opportunity to put the release of Balan Wonderworld’s Square Enix behind him. I’m out.

Jared Moore is a freelance writer for IGN.You can follow him twitter..