
Since the GC controller doesn't have a Home button, I have the second controller set as an emulated controller with hidden IR and the Home button configured to Y. I however don't have problem with this, I can use rear view for what I need. I guess `Thumb R` could be used for the rear view, some might appreciate that. I don't really use the rear view but this might put people off. Since `Shoulder R` is used for the rear view, it's kind of hard to press since you need to use the same index finger you use for accelerating (if you use the XOne controller like a human being). I do have a problem with this that might affect some. I recently changed A on the controller to tricking instead of actual A, if I ever need to steer and using `Thumb R` feels wonky. While you don't need to use anything else other than the triggers, shoulders and sticks, I do have other buttons configured. I used a deadzone of 25% for controls that needed one, this can of course be changed to your preferences.
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However, I've no clue how to go THAT deep since documentation on input functions is lacking and I'd have to study Dolphin's source code a bit (luckily, somebody pointed me towards the functions' definition!). weird problem that cannot really be fixed without an additional key being used). Even though this is the fanciest component of all this, I think I might need to go one step further and add a new feature, some other button (like, say, X) that would make sure the toggle is off even while you still own an item (you can get hit and lose the item you were holding without using it this can easily get confusing and there is no way to detoggle it without using an item you might have - which, if you use when LS is toggled, will be thrown in the opposite direction. It makes use of a toggle inside of a toggle, I find it quite complex and fascinating (tbh I wasn't sure if it would've worked, but surely enough it did!). You can also use the item by pressing LS again, and using the right stick while you don't have any item will make sure that LS is off (since you can't really see its value. In order to use the held item, use the right stick, the item will automatically unhold (you can also use the item even if you didn't hold it). ( Please note that the Back button function has been added! Scroll to the bottom of the post for enhanced version!) I have a configuration where the right stick fully emulates the GC controller's DPad, some may prefer this alternative.

Also, having the up trick on the same stick and steering is ridiculously handy. Now, the tricks' positioning might be confusing to most, however I got used to using items with the right stick when initially using my controller to emulate a Wiimote (and not a more versatile GC controller).

(below is quite a long discussion on all the aspects of this for the actual configuration just go to the bottom, although I strongly recommend reading the part about fancy item holding and the potential issue that comes with it - which can be fixed if I knew how) Here's the gist of it: right trigger's acceleration and left trigger's braking/drifting left stick is both steering and up/down tricks (also wheelies) right stick's for both using items and left/right tricks, and pressing it (or `Thumb R`) is wheelieing left shoulder's for toggleable item holding and right shoulder's used for the rear view.

You only have to use the triggers, shoulders and sticks for everything, making everything highly accessible.
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Thought I'd share my neat little XOne+MKW configuration I've worked on for a couple days The Xbox One controller emulates a Gamecube controller, but in a way that you almost don't need to move your fingers away from the buttons you're mainly using, making reaction time a lot faster.
