Cheat mode:
Hold L1 + L2 + R1 + R2
and press X, Up, X, Up, Down,
Square at the options screen to unlock all extra options.

Extra option:
Successfully complete and save the game under the normal
difficulty setting to unlock an "Extra" option at the
main menu.

Extra 2 option:
Successfully complete and save the game under the hard
difficulty setting to unlock an "Extra 2" option at
the main menu.


Hint: Starmine:
A circle with an "E" gives you energy; a
circle with a "B" gives you bonus points; and a circle
with a star in it is obviously a star. every Time you get one,
another part of the word "STARMINE" lights up. Once
you have completed the word, a special star appears. You will
know when you see it, as it is huge . If you detonate this star,
you go into Starmine. It is basically a way of getting a lot of
points.