Super Mario 96 OST - The Worst Ending. This appears on most copies of the game, and it happend for me when I got the game. I also found some other areas like : floor B1, B2, B3, the upstairs, b̴͂̚͜ŏ̴̹͍̕ẁ̷̱̓s̵̢̝͑ė̵̞ͅr̷͓̂'̴̧̩́͝s̴̓͜ ̶̗̭̇b̵͍͉͐̕a̷̼͝s̸͖̽è̸̬͜m̴̹̰͗̈e̴̞̙͠ņ̵̤̃ṭ̷̫̌, the basement, floor 1B, 2B, 3B, 4B, 5B, lethal sunny land, wet dry bay, and more! will share these later!
