Pros:
+Colourful cast of characters. In games like this I find that having a varied-looking roster is a big deal, and I'm happy to say that everyone in this game have their own unique look and personality about them. Some (all?) of them even have unique traits, although these seem to be minor, like a character who does an auto-side step when he blocks an attack.
+The variety of different arm types. I didn't know enough about this game before going in, so the fact there was so many different arms surprised me. They each have unique properties, and for a game called "Arms", they did a great job of making the arms feel like different weapons.
+The stages are another thing that I didn't realise were so diverse. I figured it'd just be big empty boxing ring-like stages, but there's quite a few nice looking ones with their own gimmicks, like those beyblade-type things.

Cons:
-Very light on content. Even with DLC there's only 15 characters and stages. There's no story mode and arcade mode is basically the exact same for each character. There's a couple of extra modes, like 1v100 or the 3 types of mini-games, but they feel like nothing more than a few minutes of distraction.
-Control customisation is severely limited. I had problems with both the motion controls and the joycons in grip controls. In motion controls I found moving with motion control to be a pain, but you can't change it to the joystick, and in the joycon grip the block button is in an awkward place and you can't change that either.

Mixed/Not important enough to be a pro or con:
~So I haven't unlocked every arm for every character, but with what I have unlocked, it looks like every character can actually unlock every arm? On one hand it's nice that they basically let you use any character you want without worrying about how good their arms are, on the other hand it does have a huge impact on how unique the characters are.
~The game clearly emphasises motion controls above any other control scheme, but to me it just felt like movement with that was way too slow. I can't call it a complete con because it does let you use the controller, but I can't call that a pro either because when you do use the control you can't help but feel like you're not getting the full game experience (and I'm pretty sure the control you have over the arms is limited when you play with a controller too, since you can't control each arm separately). So even though the game gives you some choice, it felt like no matter what I picked I was missing out on something. I think that if I was fully invested in the game (I'm only playing it as part of the free trial for Nintendo Online members) I would put more effort into getting used to the motion controls.

Notes:
•I haven't played a ton of online, but what I did try out was super smooth and fun.

Nintendo tries a fighting game other than Smash and it doesn't turn out well.

I think a lot of it has to do with how they shot themselves in the foot, neutral is set solely around two commands that while used in modular ways and can be done in combination to each other already gives a very small skill ceiling to get to. To make matters worse, neutral game is far more about poking rather than mind games. You're attempting to get the luckiest frame advantage possible before you can either set them up for a grab or attack into a super.

There's no real interest here after an hour, it's a poor fighting game on its own and the singleplayer content doesn't really fix that either. It's no Shaq Fu for sure, there's some competency here to the kinesthetics and the aesthetics themselves pop (although, i found the soundtrack forgettable). There's definitely an idea of where fun is had here but the competitive mindset these kind of games bring just end in tedium. Go pick up something else really, rather than the bottom of the barrel of the Switch lineup.

Arms seemingly had everything it needed to be a hit. A unique gameplay conceit, a fun cast of characters, and a colorful world. Arms looked like it could be to the Switch what Splatoon was to the Wii U and Nintendo seemed to be banking on it, capitalizing on its prospective success by announcing a graphic novel based on the game published by Dark Horse comics. At first, Arms did become the success Nintendo was hoping it’d be, receiving positive reviews from most publications and eventually going on to sell over two million copies. This success wouldn’t last because as it turns out, the game was called Arms because it had no legs.

Unlike Splatoon, which retained a very dedicated fanbase, once the hype died down people just kinda stopped talking about Arms. It’s easy to understand why. It’s a fun game for the first few minutes you play it, but it’s far too gimmicky for hardcore fighting game players to have any interest and is too lacking in content to keep the attention of casual players, a problem which would go unsolved as the game would receive only a few content updates in the form of characters and stages before support stopped in December 2017, just 6 months after release. With that, the Arms franchise basically died before it got the chance to even become a franchise. The graphic novel went radio silent for years before being officially canceled in 2021, and there’s been no talks of any sort of proper sequel. The most Nintendo would acknowledge Arms after 2017 was putting Min-Min in Super Smash Bros Ultimate, a move which angered millions of people who believe Smash’s roster should be populated entirely by characters from video games they played when they were 6.

For all its faults, Arms had a ton of potential and it’s a shame that potential has gone unfulfilled. There are some crazy good character designs here and some really whacky lore that I could easily envision a sequel expanding on. On the other hand though, Arms will be lost to time and I can’t really say it doesn’t deserve to be.

Man, I wanted to like ARMS so much more: it hs an incredible presentation, amaing soundtrack and fantastic character designs. I think Nintendo wanted to sell it as "Splatoon's Switch cousin IP", since it was a cool IP at launch and it add free bonus content released over the upcoming months.

It was a cool idea to begin a new series..... too bad Nintendo dropped the ball on it too quickly.

THe gameplay is interesting and considering I am a big fan of Punch Out Wii, I really liked it and each character had a cool enough gimmick to make them stand out, even though there is not the same amount of gameplay variety compared to other fighting games.

And tdespite the incredible roster, the game really misses a story mode that ties everyone together, or at least gives more depth to this charming world.
I think one of the reasons Splatoon got so successful is the fact that it combined a cool gmeplay and online matches with an interesting setting and a story full of secrets and enthrilling lore. Here we got the great gameplay and online.... but in terms of the story there is not a lot going on: each character got a comment and artwork after finishing the arcade mode, you got some story about Dr. Coyle, Max Brass and Hedlok, and some cool arts to collect.... but honestly I kinda wish for so much more. I kinda wish the planned manga of ARMS was able to be released, because with what we got I don't think I am able to completely immerse myself into this new cool IP.

I remember trying this game thanks to the nintendo switch online, who made the title free for like a week.... and I personally felt that 1 week was just enough to enjoy all of the content ARMS had to offer..... which is kind of a shame.
It's not a bad game, if you are a fan of Punch out (or Wii sports Boxing) giving it a shot will be worthy..... but man I wish there was more to it.... Hoping for an ARMS 2!