A mysterious robot named RAY has appeared, and the hero Beck has been tasked with entering an abandoned lab to find her. The androids and other robots of the world have collapsed due to a viral computer, and only one has not been infected, so he must save his race and defeat the villains, he is Mighty No.9.

Mighty No. 9 is a classic Japanese side-scrolling action game overseen by Mega Man producer Keiji Inafune, who brings back a classic formula transformed with modern technology, new mechanics, and fan involvement into something fresh and amazing. Take on the role of Beck, the ninth android in the Mighty Robots series and the only one not infected by the mysterious virus that turns other robots into a frenzy.

• Run, jump, and shoot enemies to acquire weapons and abilities from the enemies you defeat.
• Beck's body has the ability to transform into different forms depending on the specific Mighty Number robot he defeats.
• The game features an introductory stage followed by eight main stages, which can be freely selected in any order by the player.
• Beck must face one of the other eight "Mighty Numbers" in a boss battle at the end of each stage.
• At the end of the game, a final series of stages unlocks leading to the Final Showdown.
• Mighty Skills allow players to acquire new abilities and ways to evolve.

Features:

• Face RAY in an epic boss battle.
• Experience an exclusive story from RAY's perspective by playing through single-player levels.
• Features a unique twist on the core gameplay, combating constant health loss.
• Uncover the secrets of the Vermillion Destroyer and RAY's origin.
• Classic 2D action: Transformed, face your 8 Mighty brothers and unlock new abilities as you defeat them.
• Additional unlocked difficulties Hard, Hyper, and Maniac after completing the main game.
• Switch between normal and retro 8-bit music from veteran game composers.
• The new "Ray" DLC is a brand-new stage that includes an epic battle with Beck's rival, Ray, which upon completion unlocks Ray as a playable character.

To play Multiplayer online, an Xbox Live Gold subscription purchase is required.