Hacking Save-States is fun because you get to cheat. Many people would rather just cheat in this game instead of playing forever to build BP to be able to win, and if you are one of those people, today is your lucky day!

In order to cheat using this method, you will need to have a HexEditor (which can easily be found at http://www.download.com/ ) and an emulator to play the game. For all of that stuff, including the translated ROM, go here: http://www.dbcollection.com/hage/ . Then, once you have those items, you are ready to begin.
The offsets listed are for the first character. For the second character, add 12, for the third character, add 24, for the fourth character, add 36, etc.

First Character Offsets:

200 - Person
201 - Level (Recalculated after battle by BP)
202 - Current HP
203 - Current HP 2
204 - BP Value 1
205 - BP Value 2
206 - BP Value 3
20A - BE Current Value 1
20B BE Current Value 2

376 - 394 = Items

Digits for Person Modifier
00 - Goku
01 - Piccolo
02 - Raditz
03 - Gohan
04 - Kuririn
05 - Nappa
06 - Vegeta
07 - Saibaiman
08 - Cucumber
09 - Kaiware
0A - Fight
0B - Yamcha
OC - TenShinHan
0D - Chao-zu
0E - Vegeta (Monkey)
0F - Kaioh
10 - Pumpkin
11 - Brock
12 - Garlic Jr. Transformed
13 - Ginger
14 - JAsmine
15 - Nikki
16 - Herb
17 - Sansho
18 - Cinnamon
19 - Giant Monkey (Unknown)
1A - Garlic Jr.
1B - Onion (Monkey)
1C - Onion
1D - Goku (Trained w/ Kaoih)
1E - Yajirobe
1F - Chichi (See the Tips & Tricks section)

Digits for Item Modifier
80 - Kame
81 - Bubbles
82 - Shenlon
83 - Kalin
84 - Kami
85 - Bulma
86 - Mr. Popo
87 - Puar
88 - Old Man
89 - Enma
8A - Baba
8B - Kaioh
8C - Chichi
8D - Oolong
8E - Yajirobe
8F - Scouter
90 - Tail
91 - Moon
92 - Radar
93 - Escape
94 - Dragon Ball 1 Star
95 - Dragon Ball 2 Stars
96 - Dragon Ball 3 Stars
97 - Dragon Ball 4 Stars
98 - Dragon Ball 5 Stars
99 - Dragon Ball 6 Stars
9A - Dragon Ball 7 Stars

NOTE: These offsets are for FWNES. If you are using BioNES, add 100 to the hex. For example, if you were hacking 239, it would be 339. Simple enough?