Yeah, I’ve tripped over a few coin glitches before. That 1988 dungeon is a hot spot—reload right after you hit the big chasm and scan the chest by the waterfall. If it’s still missing, reset your save and run the room again; some items stay in memory and disappear on a fresh load. Just be ready for a surprise mob popping out while you’re poking around. Good luck, but don’t get too comfortable, glitch‑hunting always surprises you.