See 25 to Life HEX-code, Hint here!

HEX для easy - редактируйте в data\var - normal, hard,
omfg - в первой строке Al2PlayerDamage 0.00 -  и на любом уровне сложности вы
неуязвимы.

Invincibility
Note: This procedure involves editing a game file; create a backup copy of the
file before proceeding. Find the "easy.var" file in the "\25 to life\data\var"
folder. Uncheck the read-only attribute of the file then use a text editor to
open it. Find the "AI2PlayerDamage 0.14" line and chane the "0.14" to "0.00".
You will now get no damage when the game is played under the easy difficulty
setting.

Dazz
Arrest Shaun.

DJ Envy
Reach the subway.

Kurupt
Defeat Saragosa.

Officer Williams
Reach Mendoza's car with the evidence.

Rick Ta Life
Reach your car.

Tech H9ne
Arrest Shaun.

Bank robbing costume
Use an escape car to get away.

Freeze's starting costume
Get in your car.

Shaun's Getaway Digs costume
Trap Shaun in the subway.

Beatdown bonus mission
Successfully complete all twelve missions and all objectives.