How to get a black rock sword and flame armour:
Delete everything under [COMBAT COMMANDS] (you will find this if you go into notepad and open default.kmp which you will find were ever you installed ultima 9) and type in ALT+SHIFT+SPACE+FI=GIVE_AVATAR_BLACKROCKSWORDANDFLAMEARMOUR and then save that and than open your save gave and your armour and sword will be replaced by the black rock sword and flame armour!

NOTE: you can not get flame armour in the game without cheating

Hex Cheats:
In the Ultima 9 directory there is a file called default.kmp. When opened in a standard wordpad or other text editor you will find the following text line:

[Cheat Commands]

Simply add the following lines underneath it:

alt+shift+i = toggle_avatar_invulnerable
alt+shift+a = toggle_avatar_invulnerable
alt+shift+b = pass_one_hour
alt+shift+c = unpass_one_hour
alt+shift+d = sunrise_sunset
alt+shift+e = pass_one_minute
alt+shift+f = unpass_one_minute
alt+shift+g = toggle_sun
alt+shift+h = toggle_wind
alt+shift+i = toggle_storms
alt+shift+j = toggle_avatar_fast
alt+shift+k = toggle_avatar_fly
alt+shift+w=fill_spellbook
alt+shift+s=recharge_mana

During game play the corresponding keys (alt+shift+i & alt+shift+l) will activate the cheat functions.

Invincibility mode [Alt] + [Shift] + A
Advance Time one hour [Alt] + [Shift] + B
Time retreats one hour [Alt] + [Shift] + C
Toggle sunrise and sunset [Alt] + [Shift] + D
Time advances one minute [Alt] + [Shift] + E
Time retreats one minute [Alt] + [Shift] + F
Toggle sun [Alt] + [Shift] + G
Toggle wind [Alt] + [Shift] + H
Toggle storms [Alt] + [Shift] + I
Faster Avatar [Alt] + [Shift] + J
Flight mode [Alt] + [Shift] + K
Fill Mana [Alt] + [Shift] + S
Fill Spellbook [Alt] + [Shift] + W