Yes, Ryon's MUGEN skill has been inspiring me for many MUGEN years!
When it comes to looking up some MUGEN code details and grammar, nothing can beat Elecbyte's MUGEN docs!
By the way, from my MUGEN experience, MUGEN coding depends greatly on what they call the "trial and error" -- not working, try again, and keep doing the same thing over and over again until you get your wanted MUGEN results.
And, to me, some times when I want to code a particular feature for a MUGEN character, but fail too many times that even "trial and error" does not work any more, then I will try to find some other MUGEN characters that have the similar feature. A MUGEN Reference.......of course credits due to the respective MUGEN creator(s)/author(s).
Moreover, there are usually online MUGEN forums (i.e. here in MMV) in which you can ask your MUGEN Help questions and I believe those unselfish experienced MUGEN users can give you a MUGEN helping hand.