Mighty No. 9 (Japanese: マイティーナンバーナイン Hepburn: Maitī Nanbā Nain?) is an upcoming action-platform video game in development by Comcept, in conjunction with Inti Creates, and published by Deep Silver. The creation of the game was based on the online crowdfunding website, Kickstarter,[2] and incorporates heavy input from the public. Mighty No. 9 very closely resembles the early Mega Man series in both gameplay and character design, which lead producer Keiji Inafune worked on, and is considered its spiritual successor.

The minimum Kickstarter goal for Mighty No. 9 was successfully funded on September 2, 2013, after only two days of the creation of the campaign.[2] However, several other features including additional stages, special modes and ports to other platforms were confirmed after additional "stretch goals" related to it were achieved, increasing the total funds obtained to over 400% of the original goal.

The game is in development for Microsoft Windows, OS X, Linux, PlayStation 3, PlayStation 4, Xbox 360, Xbox One, Wii U, PlayStation Vita, Nintendo 3DS, where Abstraction Games and Engine Software[3] are porting the game onto the PlayStation Vita and Nintendo 3DS.[4] The game was scheduled to be released in February 9, 2016, with the exceptions of the PlayStation Vita and Nintendo 3DS versions of the game, but was delayed for a third time to Q2 due to software bugs concerning network operations.[5] The final release date was later announced to be June 2016.