THESE WERE DONE WITH JNES ver 220.127.116.11 and Super Mario Bros. (Japan, USA).nes — NOT ON A REAL NES AND GAME GENIE —
I was bored staying up all night so I decided to plug some random Game Genie codes into Super Mario Bros.
Here are the codes in order of appearance:
NLPTNG – Makes coin blocks split apart when you hit them, then return to normal.
GPILNK – Some powerups are missing, others will fall from the top of the screen after you hit the block. Might make a full game run more interesting.
LILNIP – Changes behaviors associated with Fiery Mario.
GPINLK – Some enemies make a weird echoing sound when you jump on them. Seems to happen at random.