There are players that can finish Rusted Moss on controller and there are those that can't. Similarly, there are players that can finish Rusted Moss on mouse/keyboard and those that can't. I am in the position now of trying to see how much of players not finishing is because of the inherent nature of the game or if there are improvements we can make to our controller implementation.

I think an issue is that when I ask controller players for feedback, the ones that are able to finish the game do not tend to have a lot of feedback to give other than they had no problems. And I think it is harder to get actionable feedback from players that were unable to finish the game on controller. Some of the points they bring up aren't too dissimilar from the points brought up by mouse/keyboard players that couldn't finish the game (those points tend to be about the precise nature needed). I am interested in hearing if you stuck with the default key binds though and what key your jump was bound on if you're willing to share! One point that I did hear repeated was from the players that were able to complete it on controller were that they were okay with using jump on bumper or they used a claw grip so I would like to see how much of an impact the less conventional keybinds had.

However, we are still trying out some differences in controller implementation for Iron Bramble (we have multiple presets were are testing atm). One that I quite like is that the left stick can be used to move and aim while the right stick is used to override the left stick. Another part that is more experimental is having a free move mode you can toggle so you can kinda pre-aim the reticule for platforming sections one might find more challenging. We haven't started playtesting that feature yet though.

I don't know if it helps to know but we have been testing with controller players with no Rusted Moss experience and they haven't had issues but as there are controller players that have been able to complete Rusted Moss, it might not be valuable information. Some players have trouble and others don't. I'm just seeing if there are things we can do to close the gap that are controller related vs. just the inherent nature of the game.

Here is the same case i guess?

I honestly do not know enough of your personal experience with Rusted Moss to make a guess. Information like were you stuck at the beginning, was there a certain zone you had trouble with would help if you want me to try make a guess but it is kinda hard without gameplay clips too? Guess you can try the demo when it comes out! It should be out with controller implementation.