depends of the game, some have complete mods (Skyrim).
other have reskins.
also depend of your motivation and available tools to do so (or your capacity to create tools and reverse game files.)
First is to dump your cartridge and unpack NCA files
I've been playing fallout4 all day, I went into a elevator and it kept going, never stopped, waited 5 minutes, must of been a bug. How bout you, whatcha do today?