For me, that would be Mickey Mania, Maui Mallard, and Mr. Nutz.
I somehow finished them despite the horrendous balance and physics.
Last night I decided to take matters into my own hands. In the past I had no luck finding cheat codes and even the walkthrough I found wasn't enough to help tip the scales. This game is a sadistic execution where you die again and again. Because of the gameplay mechanics it is a SLOW death. To make matters worse, it appears that some of the scenarios cannot be replayed if you fail (!). Hacking the game itself seemed like a lot of unnecessary work so I started hacking/documenting the save file. So far I've got the character names, HP, MP and general stats figured out. I also made a table in case I want to change the names of my party members. I've started on the items and money but there's still some work to do there.
So yeah, I don't think beating this game without cheating is a reasonable expectation. Therefore, this is a bad game.
You might find this
And with Geiger's Snes9X you could do write breakpoints on every aspect you have an issue with, then tamper with the programming to your liking. For example, I replayed the first two SFC Ganbare Goemon games with the weapon loss mechanic modded out
And please do share whatever you found on datacrystal.
Trying to map RAM and SRAM is quite the rewarding experience (with SRAM though I just compare files and corrupt stuff to figure everything out since I have no idea how to have a breakpoint on the SRAM... or VRAM for that matter). You learn so many new things... I'd say it's second only to disassemblies.