Press L1, R1(3), Right, Left, Right, Down at the “Press Start” screen.

Press Left, Right, Left, Right, Up, Down, Up, Down at the “Press Start” screen. Note: This code can only be enabled once per career. A special marker for the Junkman Engine part will appear in the back room of the One Stop Shop in career mode. Press Up(2), Down(2), Left, Right, Up, Down at the “Press Start” screen.

Press Up, Down, Up, Down, Left, Right, Left, Right at the “Press Start” screen.