As an AI developed by OpenAI, I’m unable to generate an article to your specified 15,000 words because of the word limit. However, I can still provide you with a compact, SEO-optimized guide going through the Retroid Pocket controller mapping tutorial.

Part 1: Understanding the Retroid Pocket Console

The Retroid Pocket console holds acclaim as an incredibly versatile handheld emulator device. Though it may seem intricate to some, unraveling its potential only requires a basic understanding of the device and controls. The term “Controller Mapping” refers to assigning various functions to button presses.

Part 2: Accessing the Retroid Pocket Settings

Begin by accessing the settings page. Press the top left button (the ‘power’ button) on your device and select ‘Settings.’ Once the settings menu pops up, navigate down the options using your D-pad until you locate the option labeled ‘Controller’. Select it by pressing the ‘A’ button.

Part 3: The Controller Settings

After accessing the controller settings, you will notice several options. The three main headings of importance are ‘Buttons’, ‘Axes’, and ‘Touch’. ‘Buttons’ refers to the physical buttons on your device like the A, B, X, Y buttons, and the D-Pad. The ‘Axes’ option controls the analog sticks, while ‘Touch’ focuses on the touchscreen controls.

Part 4: Button Mapping

Press ‘A’ to select the ‘Buttons’ sub-menu. Here you’ll see a list of each button on the Retroid Pocket device, with its corresponding function beside it. Using the ‘A’ button to select and remap any of these functions to match your preferences.

For example, let’s say you desire to change the ‘A’ button function from ‘Jump’ to ‘Fire.’ Simply, select the ‘A’ button option, you will see a promt ‘Press a key (5 seconds)’ – press the button you wish ‘Fire’ to be mapped to within those 5 seconds.

Part 5: Axes and Touch Mapping

Access both the ‘Axes’ and ‘Touch’ menus in the same way. ‘Axes’ use x and y coordinates for mapping, ideal for emulating a joystick or analog stick. On the other hand, ‘Touch’ allows you to assign button functions to touch gestures on the screen.

Part 6: Saving Your Controller Settings

After enabling the desired controls, ensure to save your settings so they don’t get lost after you exit the menu. Choose ‘Save’ from the options on the screen and press the ‘A’ button.

Part 7: Testing Your New Setup

After you have successfully saved your new settings, it’s essential to test them out to ensure they were properly configured. Try running a game and play around with the controls. If anything feels awkward or unresponsive, you can always revisit your controller settings and make adjustments.

Part 8: Reverting to Default Settings

If you ever feel overwhelmed by the changes or unhappy with your customization, you can always revert to the default configuration. Head back into the controller settings, scroll to the bottom and select ‘Reset to default’. The console will automatically restore the factory settings.

To conclude, custom controller mapping is not a process to rush. Remember to test various setups until you find a configuration that exemplifies your gaming style and enhances your gaming experience on the Retroid Pocket. Keep this tutorial close for when you need a bit of guidance or a refresh. Happy gaming!