Hi Hoffman, thank you for the very impressive conversion! What an awesome surprise that this is even possible!
I played this through once on a Neo Geo CD with the NeoCD SD Loader. Everything worked flawlessly until the end.
Only after I had beaten the last boss (on normal difficulty, lives free, mission 5 continues ON and demo sounds ON) and after giving initials for the hi-score screen and the game returned to the starting screen: I waited for a while to the demo to start playing. A flickery rainbowy screen with a code appeared. If the game was started fresh, the demo always played without problems.
Code: 008003E000000003996000000