Machine Head Cheats (PlayStation)

At the main menu, press Circle, L1(3), Circle, L1, Circle(2), L1, Circle(3), L1(5),
Circle(2), L1.

At the main menu, press L1, Circle, L1, L1, L1, Circle, Circle, Circle, Circle, L1, L1,
Circle, Circle, L1, Circle, L1, Circle, Circle, Circle, Circle. Use R1 and R2 to choose
your starting level.

Game Shark Codes

1.2 -- SQDZFO5TJJ
  1.3 -- HYM7GODECM
  1.4 -- EPPGHOXWDQ
  2.1 -- I54FHOD5BF
  2.2 -- E94FHOLLKJ
  2.3 -- MHLFHODTCM
  2.4 -- ALLFHOXGPU
  2.5 -- BDNJHOLLPU
  3.1 -- 5SBGHOXIKJ
  3.2 -- E9GGHOJIQH
  3.3 -- 9FOJGOLZJD
  3.4 -- SKAGHO9P4O
  4.1 -- JJOBNN9FCM
  4.2 -- EYWJHOP7BF
  4.3 -- JQNFHOP7BF
  4.4 -- 7G9DAOMOCE
  Endgame -- 6H9DAOQJ2F

At the main menu, press Circle(4), L1, Circle, L1(2), Circle, L1(2), Circle, L1(4).

At the main menu, press Circle, L1, L1, L1, Circle, L1, Circle, Circle, L1, Circle,
Circle, Circle, L1, L1, L1, L1, L1, Circle, Circle, L1.

At the main menu, press L1, Circle, L1(3), Circle(4), L1(2), Circle(2), L1, Circle, L1,
Circle(4). Then, press R1 or R2 to select a level.

At the main menu, press Circle, Circle, Circle, Circle, L1, Circle, L1, L1, Circle, L1,
Circle, L1, L1, Circle, L1, Circle, L1, L1, L1, L1.