This looks great and the link I found also includes the first two games as well. I'm going to go out on a limb here and say the Game Genie and PAR codes won't work on this ROM. I use them during the boss battles.
EDIT: Tried the codes and they do seem to work.
EDIT2: I'm going to start a new thread about this game so that this thead doesn't get derailed. This isn't the Veldt, after all.