Lets see here, Death in CV1 (so friggin cheap).
the escape at the end of Metroid 1.
trying to play the Sonic Advance 2 (soooo crappy)
trying to get the 100 super jumps in Super Mariod RPG (for a long time I had a record of 97
)
Fighting shadow Link on Zelda 2 (hardest Zelda boss of all time)