Instructions
Hold down the L1 trigger button on the second PlayStation controller and press the up button on the D-pad four times to get all of the weapons in the game.
Hold down L1 and press up, down, up, down on the D-pad to get unlimited ammunition for all of the weapons.
Hold L1 and press up, left, down, and right on the D-pad before pressing the triangle, square, x, and circle buttons. Jimmy will now know all of the Hobo Fighting moves.
Hold L1 and press up, left, down, down, then triangle, square, and x twice. This will teach Jimmy all of the gym grappling moves.