Tip: If you place a moon, midpoint, or dragon coin through Map16, it will always respawn whenever you reenter that sublevel. It will not respawn if you add it through the Add Objects/Extended Objects window.
I lowered the global volume from w180 to w140 since it was drowning out sound effects, but other than that, I absolutely love this port. The @9 with the echo works really well, and you actually managed to make @8 sound nice. Impressive!