From what I understand (had a Genesis not the SNES) but Super ESB is considered one of the 3 hardest games ever made. EVER.
Care to list the other 2 you’re thinking of mate?
Is one of them Jet Set Willy on the commodore64 or spectrum? I spent hours, if not days, as a kid trying to complete that - only to enter a room ‘wrong’ and lose all my lives. A little frustrating in that it took around 5 hours to complete the game - and no saves or time to rest etc…
As for the Super Star Wars series - bloody difficult but do remember them as highly addictive games 😃