Mighty No. 9 Is Out Now on Xbox 360 [UPDATE]

[UPDATE] Mighty No. 9 is now available on Xbox 360. Original story follows.

Mighty No. 9, the long-awaited platformer from Mega Man designer Keiji Inafune, has been delayed again--but this time only one platform is affected.

In a blog post, developer Comcept revealed that a bug was found in the Xbox 360 version of the game, which has resulted in a delay that will span "several days."

"There were issues regarding the publishing process for the Xbox 360 version of the game, and a certification bug was found in the final round of testing which is delaying the release of that version for several days," Comcept said.

"Our team has already re-submitted the build to Deep Silver (and to Microsoft), and we expect it to go gold within a few days if all goes according to plan," it added.

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Mighty No. 9's Xbox 360 version was supposed to arrive today, June 21. All of the other versions of the game scheduled to launch today--PS4, Xbox One, PS3, PC, and Wii U--have debuted on time. The 3DS and PlayStation Vita editions are coming later.

Xbox 360 players can still play Mighty No. 9 today, however, if they're willing and able to play on PC.

"For the backers who chose that platform [Xbox 360], we are supplying Steam keys so that those users are not left behind on release day," the post said. "Once the Xbox 360 version is ready for release we will send out those codes to the relevant backers ASAP."

Comcept also explained that the Mac/Linux Steam versions of Mighty No. 9 won't be available today. "These two versions of the game should be ready within a few days," it said.

Reviews for Mighty No. 9 started to show up online yesterday. The game is not being praised in the way Comcept might have wanted. GameSpot's review scored the game a 5/10, while other reviews were also critical.

It's been a long road to release for Mighty No. 9. After successfully raising funds on Kickstarter in 2013, the game was delayed multiple times before its release today. The project has also been surrounded by some amount of controversy.