Ages ago (more than a year) I asked this same question and I think there was one player who responded that they completed the game while still Boogred (I believe they never figured out how to undo the curse). I'm not sure if that thread would be on this board somewhere or off in the archives of really ancient posts. Will be interesting to learn if anyone else has played through while Boogred!
Wyv
(If Red were Boogred, what would he look like?)