Yes controllers are OK too.
Coop is OK in story mode and 1v1
Multi languages is also OK (french for me but it's not written on store page)

says the guy with 2 two games here over the course of 5 years.

Thank you for clarification!

I guess GOG can't force Steam-crossover if Valve and/or Developer/Publisher don't want it.
It's not good that we don't have online functionality (Galaxy?), however we can get it later on with a patch.

So I'm OK with Streets of Rage 4, for me it's a worthwhile purchase. (I have not bought it yet, but it's on my Wishlist since the announcement on GOG)

Unless they patch in galaxy online support ASAP, it won't matter, the damage will be done, everyone who cares will have bought it on Steam already. This incompetence is just what I expect from a garbage-tier company like Dotemu

As others said, vote with your wallet. I agree with you, albeit on paper only (i wouldn't like a game removed from GOG, like, ever), but for another reason...

The game is bad and half-a$$ed, especially when compared against the fangame, Streets of Rage Remake V5.1

- No running
- Players like Ash, Roo, Mr.X and Elle are absent, despite retro fighters being unlockable
- Combat is choppy and sloppy (i "tried" the game a little bit myself already and am very disappointed)
- Controls could be slightly quicker to respond
- There is no old Sor weapon styles; they disappear, after being used for some time, even if you took no damage and you didn't drop them

If you haven't already, SorR 5.1 is the epitome of all things Bare Knuckle/Streets of Rage! Not only it combines everything from the series, even the options and gameplay mechanisms (police call from 1, big moves from 3), but offers the full variety of weapons, guns, stages. This one right here is a good brawler, but a bad Sor title.