Level Select:
     At  the  main  menu  press  UP, LEFT, CIRCLE, CIRCLE, LEFT, LEFT,
SQUARE, DOWN, UP, CIRCLE

Level Skip:
     During  gameplay  press  SQUARE,  TRIANGLE,  LEFT,  DOWN,  RIGHT,
TRIANGLE, RIGHT, UP, X

Invincibility:
     During gameplay press X, TRIANGLE, RIGHT, LEFT, CIRCLE, UP, DOWN,
DOWN, RIGHT, CIRCLE, CIRCLE

Extra Damage:
     During  gameplay  press  X, TRIANGLE, RIGHT, UP, RIGHT, TRIANGLE,
CIRCLE, RIGHT

Burn Everything:
     During gameplay press SQUARE, TRIANGLE, LEFT, DOWN, SQUARE, CIRCLE

Goat Mode:
     During  gameplay  press  TRIANGLE,  RIGHT,  LEFT,  LEFT,  CIRCLE,
TRIANGLE, SQUARE, RIGHT, UP