Blimey. It has been months since I last played this. Put it into my shiny new Game Boy Micro and had a play this morning.
Seems I’m still stuck on Sky Canyon. Pah.
Managed to get to the boss, but died. Had no lives left, so when I continued I had to do the whole of Sky Canyon again. After going through this cycle a few times (there are too many leaps-of-faith on Sky Canyon, which means UNAVOIDABLE DEADNESS) I bored of it and switched it off. Pff.