@Felthry It'd be interesting to see. You can see the levels from the MSX version that they tortured into the NES version and they added some stuff to them.
You'd likely need to do the same for the un-ported stuff. Add a little more bulk to the individual levels because they're quite short on their own. MSX limitations with scrolling and stuff I guess.
@trysdyn (by which I mean basically put all the MSX version levels into a recreation of the NES version engine)
-F