Don't use that site anymore. Just use the cheat engine since that don't even need an internet connection to work. For anyone who wants it, here:Maybe because a lot of them are massively large, and in some cases aren't exactly linear? It would be like comparing Metroid 2 return of Samus to Super Metroid or Metroid 3.
But metapors aside there are some hints and clues within the game though a lot of them are vague.
But on another note anyone who wants to saveedit to speed things up is still out of luck seeing as the site is still down. So unless there is another site that does this you will have to do it the old fashioned way.
Just open up whatever save file you wanna edit, hit the advanced tab in the engine and boom - you've got all the variables and labeled too so you don't even have to look at the walkthrough to see what's what. Though the walkthrough does help identify since the variable labels are in Engrish.