Thanks for the feedback, appreciate it!
With no gamepad plugged in or with 'experimental mouselook' on it uses the mouse for facing angle at all times which I think is leading to the moonwalking! We've had someone else feedback that this seemed weird too, I think I just tried it cos of games like Nuclear Throne/Enter the Gungeon had it and felt alright but they are more constantly active in looking in a direction with the mouse. We'll look to do an update that makes it a toggleable option so players can choose to break the direction if they want
(on controller the right stick changes facing so can similarly break it but cos it's in neutral most of the time that isn't perhaps as noticeable a problem to players!).
Also will look to have an option to switch left and right mouse buttons as yea like you say it is probably more usual to have use on lmb...
With holding objects, yeah maybe the rotation is a tad offputting, was in there originally because there was no arrow on throwing to hint where it was going. Will have a play around with disabling it or limiting it to four directions as I think perhaps it is one of those things with pixelart that people prefer not to see rotations if possible...
With control layout, the way it works at the moment is it shows gamepad keys if you have a controller plugged in, if not (or if you toggle 'experimental mouselook') it'll show the keyboard keys. Maybe can try a more switchable approach based on what you last used so that it's clearer.
Glad you like it so far!