Box art sourced from libretro-thumbnails (Named_Boxarts).
Matched name: Metal Slug X (USA)
URL: https://thumbnails.libretro.com/Sony%20-%20PlayStation/Named_Boxarts/Metal%20Slug%20X%20(USA).png
https://github.com/libretro-thumbnails/libretro-thumbnails
PNG is for README; TGA is for recomp-ui LAUNCHER_BOXART.
