Classic Japanese Side-Scrolling Action...Transformed!
Mighty No. 9 is a Japanese 2D Side-scrolling Action game that takes the best elements from 8 and 16-bit classics that you know and love and transforms them with modern tech, fresh mechanics, and fan input into something fresh and amazing!
You play as Beck, the 9th in a line of powerful robots, and the only one not infected by a mysterious computer virus that has caused mechanized creatures the world over to go berserk. Run, jump, blast, and transform your way through twelve stages using weapons and abilities stolen from your enemies to take down your fellow Mighty Number robots and confront the final evil that threatens the planet!
Every aspect of Mighty No. 9’s development—art, level design, music, programming, etc.—is being handled by veteran Japanese game creators with extensive experience in the genre, all the way up to and including the project’s leader, Keiji Inafune himself!
Key Features:
Classic 2D Action: Transformed! Face off against your 8 Mighty brethren and unlock new transformations as you defeat them, granting you completely different skills and abilities!
Play through 12 Challenging Stages in a single player campaign that will put both your thumbs and action platforming abilities to the test!
Unlock the New Game+ to add an additional two extra difficulty levels for those who want an even Mightier challenge.
The Single Player Challenge mode with dozens of mini missions will fully test your action platforming skills.
Boss Rush Mode: Play through each of the game‘s bosses, back to back, with a clock ticking to keep track of your best time, so you can share, compare, and show off your skills to your friends and frienemies alike!
Show the world how Mighty you are in the 2 Player Online Race Battle where you compete online, racing through each stage together in a head to head battle - adding an all new twist on versus mode play that will give Mighty No. 9 life well beyond the single-player campaign!
2 Player Online Co-Op Challenge Mode: take on over a dozen missions online with a friend, playing as Beck and his partner, Call! Use Beck and Call’s different powers together in order to defeat these special challenges!
Leaderboards & Rankings: Use Beck's Absorption Dash skill in tandem with his abilities & transformations to chain together combos and perfect your run-throughs to earn those glorious high scores and elusive S-Ranks!
Toggle between regular and 8-bit music: this game is a veritable who’s who of veteran game composers - Manami Matsumae, Takeshi Tateishi, Ippo Yamada, so we thought, why not tap into that retro vibe? As such, Mighty No. 9 features an optional chiptune version of the entire game soundtrack which you can toggle on and off!
Graphics: Radeon HD 7770 or Nvidia GeForce GTX 550 Ti
Storage: 2 GB available space
windows Recommended
OS: Windows 7 64-bit or newer
Processor: Intel Core i5 @ 3.3 GHz or AMD Phenom II X6
Memory: 8 GB RAM
Graphics: Radeon HD 7950 or Nvidia GeForce GTX 660 Ti
Storage: 2 GB available space
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-08-07
Yet Another Chance to Earn Extra 50 YXP
Summer is already in full swing and YUPLAY has decided to give you yet another chance to earn an additional 50 YXP to help you reach the next rank. On top of the YXP you receive based on the amount of your purchase, you will also earn these additional 50 bonus YXP for limited time only. All you need to do is make a purchase of at least €10 between 07.08.2026 15:00 CET and 10.08.2026 15:00 CET and receive an extra 50 YXP for our Loyalty Program…
The Summer Sale Returns: Bigger Deals for 48 Hours Only
Summer is here and we are already preparing for a super fresh season full of incredible delights and heated moments! Make an order of over 15€ between 31.07.2026 13:00 CET and 02.08.2026 15:00 CET and you will get our special SUMMER DEALS GIFT, which will contain one of the following: discount codes - 10% OFF, 20% OFF, 25% OFF or 50% OFF; discount vouchers - 1€, 2€, 5 or 10€; or a FREE GAME…
This game does not default to external Bluetooth/USB controllers on Deck, and may require manually switching the active controller via the Quick Access Menu
All functionality is accessible when using the default controller configuration
This game shows Steam Deck controller icons
In-game interface text is legible on Steam Deck
This game's default graphics configuration performs well on Steam Deck