The file "FLAG5" controls which endings are marked as seen, and which pictures show up in the Photoshop. Using a binary file editor, by changing byte $E8 through $EE to the value $11, all 14 endings are marked as seen. By changing bytes $B6 through $D4 to the value $11 (actually, $B6 can be $10), all 61 pictures in the Photoshop are made available. These are presumably all the sexy scenes in the game, except there are several of naked girls standing in caves or tunnels towards the end of the game that are left out for some reason. Bytes $52 through $69 usually have non-zero values, but they have no apparent effect on the endings or the Photoshop if set to zero. Some of the endings are really tough to get.