Nintendo ha reso disponibile il primo aggiornamento maggiore di ARMS, il 2.0, mantenendo così la promessa di supportare il gioco post lancio con nuovi contenuti. Tra questi è impossibile non citare il nuovo personaggio, Max Brass, ma c'è anche dell'altro, come una nuova modalità, un nuovo livello, delle nuove arm e vari miglioramenti. Le nuove arm sono: Nade, Roaster, Kablammer; mentre il nuovo stage si chiama "Sky Arena".
La nuova modalità si chiama Hedlok Scramble, è una modalità versus in cui bisogna colpire una capsula con dentro la maschera di Hedlok per trasformarsi nel personaggio per un certo periodo di tempo.
Per il resto delle novità possiamo leggere il changelog completo:
• ARMS League Commissioner Max Brass added as a playable character.
• New ARM "Nade" added.
• New ARM "Roaster" added.
• New ARM "Kablammer" added.
• New stage "Sky Arena" added.
• New versus mode "Hedlok Scramble" added.
• Punch or touch the capsule containing the Hedlok mask to become Hedlok for a period of time.
• This can be selected in Versus, Friend, or Local and it will also appear in Party Match.
• "Stats" added to the Top Menu.
• Check stats such as your most used fighter, best stage, and ARM accuracy.
• "Events" added to the Top Menu.
• Here you can set whether or not you want to join official online events.
• Snake Park has been swapped out for Sky Arena in the Ranked Match stage roster.
• Raised highest rank in Ranked Match to 20.
• Increased the penalty for disconnecting during Ranked Match play.
• Shortened the amount of time necessary for the following ARMS to return after being extended, making them easier to use: Megaton, Megawatt, Revolver, Retorcher, Boomerang
• Increased movement speed of the Guardian.
• Improved visibility during charge attacks for the Popper and Cracker.
• Increased the amount of time necessary for the following ARMS to return after being knocked down, increasing risk: Popper, Cracker, Hydra
• Increased the amount of time it takes to recover when a grab is deflected with a single punch.
• Decreased the amount of damage when the Hydra's rush connects with multiple consecutive hits.
• Decreased the distance Kid Cobra travels when jumping.
• Fixed issue where in some instances Ribbon Girl could remain airborne for an overlong period of time while continually attacking.
• Fixed issue where Ninjara would not destroy the light boxes on the Ribbon Ring stage when getting up.
• Fixed issue where the time necessary for the Triblast to return when deflected was shortened.
• Fixed issue where ARMS such as Blorb and Megaton would catch on the ground and fail to fire.
• Fixed issue where explosive ARMS would sometimes fail to explode when receiving an attack.
• Fixed issue where the Slapamander would sometimes fail to hit Helix when he is extended.
• In online play, fixed issue where the appearance or non-appearance of items could differ between devices.
• In online play, fixed various issues with V-Ball including an issue where the ball would remain grounded and play would not proceed.
• In online play, fixed an issue where sometimes Barq would continually defend against an opponents' rush attack for a set period of time.
• In online play, fixed issue where sometimes pillars in the Scrapyard would not be destructible.
