anothername: My "nope" moments are more the little rage times in RPGs when everything the player char is able to from levels, skills, spells & knowledge gained by reading ingame books gets thrown overboard to enforce the story in a specific direction. Mosts... "popular": The dying NPC scenario that completly ignores not only that bazillion heal, cure, regenerate spells but also the half bazillion of resurrection spells of the player cleric without any explanation given other than "yeah, we wanted to make a point and killed that companion char".
Variant of this scenario - when godly equipped character "thanks you for all the gear" and moves to greenier pastures. Dragon Warrior VII had you parted with Maribel at around 40 hours in the game. If you had some specific key items on her (shards which were used to progress in the game), you were royally screwed, especially if you didn't notice it and saved the game, rendering game unwinnable. But it is a common habit among RPG players - to strip party member of anything valuable when he is about to leave or die :)
It is subverted in some games like "Wizards and Warriors", where you could endlessly make new characters, strip them of their belongings to sell and pool all gold to your main party. In "Might and Magic" 3-5 you could make slave party, make them work until they die from old age (with depositing some gold in bank for interest) and then rip profits by newly made main party.
MaximumBunny: The AI in it is dumb as rocks. Just circle the arena with the ball and all of them will form a line to chase you in. Makes it easy to score and such. I rose to the top, 0 losses. :)
Yeah, I actually had no losses (and abused trick with hiding ball behind my goalie at first a lot) and even got some overpowered AlBhed players on my team later on (their goalie can basically make team invincible). But after playing it for 10-20 hours overall and understanding that I need to play it around 10 times that amount to get overdrives and what-not... It was rather depressing if to consider how tediously long those games can be.