Hexcheat:
 There are 19 endings in the game, and over 50 
 pictures in the photoshop. Check the values in 
 the "FLAG3" file first: if the beginning says 
 "ALLPIC.MES", and byte B is already 1, then the 
 photoshop has already been maximized. If it hasn't, 
 or all the endings aren't showing up, change bytes 1 
 through A to the value 1, except 3 can be 0 and 
 not miss anything. Now change B to the value sh1. 
 When you next run the game and view the entire photoshop, 
 you will get a final screen with a Japanese text phrase, 
 and the FLAG3 file will be modified to maximize the 
 photoshop. There are other ways of getting to see only 
 some of the pictures, but I figured you can always ignore 
 the boring stuff if you are guaranteed to see ALL the adult 
 stuff as well. Note that any changes to the FLAG3 file