That's a pretty interesting code if you ask me. The first
letter is shifted by one
letter in the alphabet (M is one letter after L), the second
letter is shifted by two
letters (W is two letters after U), etc.
So to map GOOD, we'd have to shift G by one letter, O by two letters, O by three letters and D by four letters. I make that HQRH
Your DS is one smart cookie.
It helps to remember that each letter can (and should) be looked at as an individual, so to speak, when looking for the connection, but even with my limited study of VR, I think it's safe to say the it is not a particularly uncommon type of question.
Someone else will probably be able to tell you that it is a 'type X' or whatever
, but I'm afraid that I can't.