I will answer questions but I have two bug reports. One I can tell you how to replicate, the other I have no idea what I did, so I can't exactly replicate it. Both have to do with detaching.
I also wanted to mention I kept seeing lines on a few of the frames of the idle and walking animations. Definitely sure those are not supposed to be there.
The Dial
The dial definitely feels intuitive. I actually liked how easy it was to use compared to other quick choose dials I have used in the past.
Arm Throw
It was alright, I just really didn't know what to do with it. If there was supposed to be a puzzle to solve with the hand, I didn't know. I did like the speed of the throw, though. I really wished there was some sort of tutorial on how to throw it, though. I got stuck figuring it out until I had someone help me with the solution.
The Scenery
The scenery was well done. Of course, I wish it was animated and there was more in the foreground where the player actually is, but the background parallax was well done and all the background elements were really nice.
Now for the bugs.
Bug 1: No animation after quick swapping
This one is simple and easy to replicate. When I begin to throw the hand, keep the hand in a throwing position, then use the dial to quickswap to the feet, I then press E to drop a foot. The foot drops and I am still able to throw the hand. After I throw the hand, the dude loses all animation and just stands there. I think this may have something to do with the sprite being stuck between animations.
This is what happened after I did this bug. The dude is stiff and apparently has 3 feet. You can still drop the other foot, so technically he has 4.
Bug 2: Three feet
I was unable to replicate this, but it happened right after I figured out how to throw the hands. From what I remember, I pressed E to throw the hand but never pulled it back to slingshot it, walked a little bit, switched to the feet with the quick swap dial, then pressed E to drop the foot. Of course, it dropped, and this time it switched to just one foot. Then, I pressed E again, dropped another foot, but it did not switch to the no foot animation (The one where he is rolling on his pelvis). I then pulled up the dial again, switched to the pelvis to try to drop that, which it did, but it still would not switch from the one foot and one hand animation. Same when I dropped the other hand and the torso. I was unable to replicate this one, I apologize. That's as best I can remember what happened. Oh, and the full animation, including the walk and transition to and from idle, along with the idle animation still worked just fine. It was just the wrong animation.

This is just after this bug was found. As you can see the dude is not stiff like in the last photo. I don't know why the animation worked here and not in the first bug.
I hope y'all are able to get the bugs squashed. Your game looks fun so far, and the animations are well done!
Eric Hillmeyer