Boss mode: Hold C while inserting your coin(s). Then, press
Up, Down, Up, Down, Left, Right,
Left, Right, B, A, Start while
the counter is decreasing at the title screen. Note: One button
should be pressed each time the counter decreases by one. A sound
will confirm correct code entry.
Information in this section was contributed by Martin Vigil.
Secret ships: Insert your coin(s). Press Up, Up, Down,
Down, Left, Right, Left, Right,
A, B while the counter is decreasing at the title
screen. Note: One button should be pressed each time the counter
decreases by one. A sound will confirm correct code entry. Three
new ships will appear under the four original ships.
Alternate bullet colors: Hold C and press Down during game play
to change the destructible bullet color. Hold C and press
Right during game play to change the normal bullet color.
Hold C and press Left during game play to change
the special bullet color.
Information in this section was contributed by Martin Vigil.
Alternate ship colors: Press Start to select your ship at the selection
screen. Your ship and weapon fire will be an alternate color.
Bonus ship formations: When you have at least one satellite, intentionally
pass by five of the same type of power-up before collecting an
option power up.
Information in this section was contributed by Martin Vigil.
Homing formation: Five bomber power-ups
Rolling formation: Five main-shot power-ups
Search formation: Five option power-ups
Shadow formation: Five point power-ups
Wide formation: Five wide shot power-ups
