He didn't mention 24 years ago in this article about porting Jazz Jackrabbit 1 to Sega CD maybe due to copyright issues maybe because Bonus Stages in JJ1 were similar to Sonic CD.It's time for compliments if jj1 was ported to Sega CD players could be able to unlock via some gamepad buttons combinations to unlock early map design of jj1 bonus stage, unlock some original artworks and game posters, level select so players could have access to unfinished levels placeholders that ones described in tcrf.net jj1 article,debug mode.