During the opening sequence when the fighters are in flight, press Up, C-Down, Left, C-Right, Down, C-Up, Right, C-Left, L, R, Z. If you entered the code correctly, you will hear a sound.
When "Press Start" appears on the opening screen, press C-Left, C-Down, C-Right, C-Up, C-Left, C-Right, C-Down. Then, a hidden F-15 with a female pilot (Mao Mao) can now be accessed.
Compete all bonus missions to access Spanky as a hidden pilot.
A new enemy plane will become available in deathmatch mode for each level completed in the game. A total of six enemy planes may be enabled.
At the plane selection screen, press R, in main game practice or boss attack modes. For death match mode, hold R while selecting one of the four default planes.
Before reaching one credit remaining, reset the game and continue from the menu that immediately follows the title screen. Then the game will resume with the same number of credits that were available when the current stage was started.
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Game Shark Codes
Infinite Health
8027CFF5 00C8
8027CFF9 00C8
Infinite Armor Plane
8127CFF4 44A0
8127CFF8 44A0
Infinite Chaffs
8027E017 000A
Infinite Special Weapons
8027E4D2 0002
Always Have F-15J Eagle
8027CCEC 0010
Always Have X-29A A.T.D.
8027CCED 0020
Game Speed Change
8127CC00 ????
Gun Speed Select
8027CC01 00??
Ultra Fast Missile Recharge
8027E300 0001
Rocket Squad
8027E107 0001
Tomahawk Squad
8027E109 0001
Gun Select
8027E023 00??
Slow Game
8127CC00 0001
Quantity Digits to Accompany Weapon Modifier Codes
00 - Chaff
01 - Jammings
02 - Air Mines
03 - Mahibishi
0A - 22mm BB Shot
0B - 22mm
0C - Hunai Shot
0D - Fireball
0E - Sabre
14 - Fire
15 - Tomahawk
16 - Ninja Glitch
17 - Fire Wave
1E - Rocket
1F - Phoenix
20 - Star
21 - Fire Arrow
28 - Ninjabeam
