I love me some cheats to start off GTA with. I'm usually this way when I play a new GTA...do the opening mission, then go around doing my own shit for awhile. Cheats help with the fun. Afterwards, cheats go off and it's time to do the story.
Badass in a Sig #1 - Hiei (Yu Yu Hakusho)
Somewhat of a Vegeta Complex but all around kickass son of a ice-bitch, Hiei is the Uchiha before Uchiha became a thing. Demon, quick to the kill and an awesome voice actor (same as Android 17!!).