You have two possibilities to cheat with an hex editor:
Skills / Money:
Open SAVE with an hex editor and check out the
for slot 1: 300
for slot 2: 82C
for slot 3: D58
for slot 4: 1284
for slot 5: 17B0
for slot 6: 1CDC
Hier change everything to
63 00 A0 00 00 00 A0 00 A0 00 A0 00 8D 10
Now you have maxed out all figures but Fatigue, which
still is 0.
If you need it again later in the game this hexing
can be repeated later again.
Open END with an hex editor and change the first 11 rows
completely to FF.
Now you can see all pics in the CG room and everything
is set to 100%.