A friend of mine had a #GameShark it seemed crazy to me throw a cheat hardware in between proprietary game hardware and its proprietary cartridges, but it was cool what it could do. I recall it turning Blood back on for Mortal Combat. en.wikipedia.org/wiki/GameShark
GameShark - Wikipedia

It was a rough decision for me, but I removed the plastic pins on my US Super Nintendo so it could play a Japanese cartridge. I forget which one. The only other time I can recall playing an unported Japanese game was #JumpSuperStars , or maybe #JumpUltimateStars. en.wikipedia.org/wiki/Jump_Su...