Okay, so now that GTAV has been out for a few days, the cheat codes are coming in like crazy! Here are some from IGN. Feel free to add more as they are discovered!
Via IGN
| Moon Gravity | LEFT, LEFT, LB, RB, LB, RIGHT, LEFT, LB, LEFT |
| Raise Wanted Level | RB, RB, B, RT, LEFT, RIGHT, LEFT, RIGHT, LEFT, RIGHT |
| Lower Wanted Level | RB, RB, B, RT, RIGHT, LEFT, RIGHT, LEFT, RIGHT, LEFT |
| Fast Run | Y, LEFT, RIGHT, RIGHT, LT, LB, X |
| Fast Swim | LEFT LEFT LB RIGHT RIGHT RT LEFT LT RIGHT |
| Recharge Ability | A, A, X, RB, LB, A, RIGHT, LEFT, A |
| Give Parachute | LEFT, RIGHT, LB, LT, RB, RT, RT, LEFT, LEFT, RIGHT, LB |
| Skyfall (Spawn in the sky) | LB, LT, RB, RT, LEFT, RIGHT, LEFT, RIGHT, LB, LT, RB, RT, LEFT, RIGHT, LEFT, RIGHT |
| Explosive Melee Attacks | RIGHT, LEFT, A, Y, RB, B, B, B, LT |
| Bang Bang (Explosive Bullets) | RIGHT, X, A, LEFT, RB, RT, LEFT, RIGHT, RIGHT, LB, LB, LB |
| Flaming Bullets | LB, RB, X, RB, LEFT, RT, RB, LEFT, X, RIGHT, LB, LB |
| Slow Mo Aim | X, LT, RB, Y, LEFT, X, LT, RIGHT, A |
| Drunk Mode | Y, RIGHT, RIGHT, LEFT, RIGHT, X, B, LEFT |
| Change Weather | RT, A, LB, LB, LT, LT, LT, X |
| Slidey Cars | Y, RB, RB, LEFT, RB, LB, RT, LB |
| Slow Mo | Y, LEFT, RIGHT, RIGHT, X, RT, RB |
| Buzzard | B, B, LB, B, B, B, LB, LT, RB, Y, B, Y |
| Comet | RB, B, RT, RIGHT, LB, LT, A, A, X, RB |
| Sanchez | B, A, LB, B, B, LB, B, RB, RT, LT, LB, LB |
| Trashmaster | B, RB, B, RB, LEFT, LEFT, RB, LB, B, RIGHT |
| Limo | RT, RIGHT, LT, LEFT, LEFT, RB, LB, B, RIGHT |
| Stunt Plane | B, RIGHT, LB, LT, LEFT, RB, LB, LB, LEFT, LEFT, A, Y |
| Caddy | B, LB, LEFT, RB, LT, A, RB, LB, B, A |
| Rapid GT | RT, LB, B, RIGHT, LB, RB, RIGHT, LEFT, B, RT |
| Duster | RIGHT, LEFT, RB, RB, RB, LEFT, Y, Y, A, B, LB, LB |
| PCJ-600Motorcycle | RB, RIGHT, LEFT, RIGHT, RT, LEFT, RIGHT, X, RIGHT, LT, LB, LB |
| BMX | LEFT, LEFT, RIGHT, RIGHT, LEFT, RIGHT, X, B, Y, RB, RT |
Via IGN
