Draw a horizontal oval or rounded rectangle for the main body
Add two small grips at the lower left and lower right sides
Sketch two large circles on the upper left and upper right for the thumbsticks
Draw a smaller circle or cross-shaped D-pad on the left side
Add four small buttons in a diamond pattern on the right side
Draw two small buttons near the top center for start and select
Add shoulder buttons along the top left and top right edges
Outline the controller with smooth curved lines
Erase extra guide lines
Add details like button labels, seams, and small highlights
Shade the controller lightly for depth
Color the body and buttons as desired