=>Stage Select: Press PAD: U cD L cR D cU R cL [L] [R] Z during the intro.
=>Mao Mao as Pilot: On the title screen, with the logo and PRESS START, press
cL cD cR cU cL cR cD. Go to a plane select screen and you will see an F-15
with Mao Mao on the far left.
=>Bonus Missions & Spanky: To play as Spanky, you must complete all four
* To reach "Air Docking" you need a very high score.
* To reach "Shuttle Defense" complete all the levels before "Desert"
* To reach "Goliath Defense" beat the first two bonus levels.
* To reach the elusive "Space" bonus level, you must beat all the previous
levels (both the regular and the hidden ones previously mentioned) prior
to the Ice Cave; beat the Ice Cave and reach Space.
=>Color Select: While selecting your plane, press [R] to change the color.
=>F-14 Firepower Trick: While flying in an F-14, use your special weapon, then
a missile, and finally a chaff... five Tomahawks and four heat-seekers will
=>Bonus Jets: Every time you beat one of the six stages, you earn a new jet.
Beat them all for all six.
=>Ice Cave Shortcut: Fly down the cave until it widens, then turn around, and
fly back... pass through the grey bars and keep going until you reach the
=>Unlimited Continues: As long as you have at least one continue left, you
can continue an unlimited number of times. Just press RESET before you use
the continue and then continue your game on the main menu. Your continues
will never decrease this way.