Ace Combat 4: Shattered Skies

# Bonus options

Successfully complete all 18 missions, then save the game. Load the saved game to unlock the following new options at the main menu: "Special Continue", "Free Mission", "Trial Mission", "Scene Viewer", "Music Player". The "Special Continue" option allows the entire game to be replayed with new fighters and weapons, plus the money earned in the first game. The "Free Mission" option allows any mission to be played. The "Trial Mission" option allows the game to be played in either score attack or time attack modes. The "Scene Viewer" allows FMV sequences to be played. The "Music Player" option allows any of the 36 songs in the game to be played.
# Expert mode

Successfully complete the game on the hard difficulty setting to unlock the expert difficulty setting.
# Ace mode

Successfully complete the game on the expert difficulty setting to unlock the ace difficulty setting.
# All aircraft

Use the following steps to unlock all aircraft, including special colors. First, acquire an aircraft by destroying it in battle. You can acquire three different paint schemes for each aircraft. Two of the paint schemes can be acquired by destroying that color aircraft in battle. To acquire the special brightly colored third aircraft, you must find and kill the pilot flying it. On each level of the game there is a single hidden aircraft (eighteen total hidden aircraft). Each one of these aircraft has a specific pilot. When you see the aircraft in front of you and lock on, it will display the pilot's name next to the aircraft name and lock on square. For example, "S-37A SMIRNOVA". The hidden aircraft will not show up on radar until you get nearby. On radar, the aircraft will be marked with a red triangle instead of yellow. Each hidden aircraft is always in the same place on their specific level. This is always in an empty spot on the map away from the main combat zone. The aircraft can usually be found directly behind the main combat zone. Last but not least are the three remaining aircraft. To acquire the Yellow Squadron fighter (SU-37) of your nemesis Yellow-13, you must kill all of the pilots with names flying the special colored aircraft (eighteen total). The method used to unlock the F-4E with tiger stripes is unknown at this time. To unlock the X-02 Stealth, get an "S" rank on all 18 missions on normal mode.
# Aircraft list

The following is a complete aircraft list (in order):

F-4E (fighter)
Blue
Camo
Tiger Stripes

F-5E (fighter)
Sky Camo
Gray Camo
Sea-Green (Wang) level 1

F-16C (fighter)
Gray
Camo
White w/ Blue Stripes (Tempel) level 3

A-10A (attacker)
Camo
Desert Camo
Silver (Ciffred) level 2

MIR-2000 (fighter)
Sky Camo
Gray Camo
White w/ Blue Stripes (Rigaux) level 4

F-14A (fighter)
Gray
Sky Camo
Black (LEVY) level 6

TND-ID5 (attacker)
Camo
Green
Yellow Stripes (De Vico) level 7

F/A-18C (multirole)
Gray
Desert Camo
Yellow (Vrisala) level 8

F-15C (fighter)
Gray
Green-Gray
Blue-Silver (Tuttle) level 9

MIG-29A (fighter)
Gray Camo
Camo
Red (Mrkos) level 5

F-117A (attacker)
Black
Gray
Winter Camo (Kwee) level 16

EF-2000 (fighter)
Gray
Brown
White with red stripes (Olmstead) level 15

R-M01 (multirole)
Black
Gray Camo
White with blue stripes (Faye) level 10

F-15E (multirole)
Black
Camo
Blue Tiger Stripes (Gunn) level 13

F-2A (attacker)
Blue-Gray
Camo
White with red stripes (Urata) level 12

SU-35 (fighter)
Sky Camo
Gray Camo
White with blue and red stripes (Neujmin) level 11

F-22A (fighter)
Sky Camo
Gray
Gray (Abell) level 14

SU-37 (fighter)
Camo
Gray
Gray Camo with yellow wing tips (Yellow Squadron)

F-15ACTIVE (fighter)
Black
Gray Camo
White with blue andred stripes (Halley) level 17

S-37A (fighter)
Black
Gray Camo
Silver Camo (Smirnova) level 18

X-02 (multirole) (last aircraft)
Gray Camo
???
???

Game Shark Codes

Master Code (Must Be On) EC878528 1438A94C
Unlock All Aircraft 1CBD84486 1DFB00C
4CBD844C 1456E40C
Unlock All Weapons 1CBD8468 61DFB00C
1CBD846C 61DFB00C
1CBD8470 61DFB00C
Extra Paint Schemes 1CBD8450 61DFB00C
1CBD8450 61DFB00C
1CBD8454 61DFB00C
1CBD8458 61DFB00C
4CBD845C 1456B00C
Max Ammo A-10A 1CBD9E50 14DF089C
4CBD9E52 1456E788
4CBD9E56 1456E788
4CBD9E5A 1456E788
Max Ammo EF-2000 1CBD9ED0 14DF089C
4CBD9ED2 1456E788
4CBD9ED6 1456E788
Max Ammo F-117A 1CBD9EC0 14DF089C
4CBD9EC2 1456E788
4CBD9EC6 1456E788
4CBD9ECA 1456E788
Max Ammo F-14A 1CBD9E40 14DF089C
4CBD9E42 1456E788
4CBD9E46 1456E788
Max Ammo F-15 Active 1CBDA140 14DF089C
4CBDA142 1456E788
4CBDA146 1456E788
Max Ammo F-15C 1CBD9E90 14DF089C
4CBD9E92 1456E788
4CBD9E96 1456E788
Max Ammo F-15E 1CBD9EB0 14DF089C
4CBD9EB2 1456E788
4CBD9EB6 1456E788
4CBD9EBA 1456E788
Max Ammo F-16C 1CBD9E30 14DF089C
4CBD9E32 1456E788
4CBD9E36 1456E788
Max Ammo F-22A 1CBD9E10 14DF089C
4CBD9E12 1456E788
4CBD9E16 1456E788
Max Ammo F-2A 1CBD9EF0 14DF089C
4CBD9EF2 1456E788
4CBD9EF6 1456E788
4CBD9EFA 1456E788
Max Ammo F-4E 1CBD9F20 14DF089C
4CBD9F22 1456E788
4CBD9E26 1456E788
Max Ammo F-5E 1CBD9F10 14DF089C
4CBD9F12 1456E788
4CBD9F16 1456E788
Max Ammo F/A-18C 1CBD9E80 14DF089C
4CBD9E82 1456E788
4CBD9E86 1456E788
4CBD9E8A 1456E788
Max Ammo MIG 29A 1CBD9EA0 14DF089C
4CBD9EA2 1456E788
4CBD9EA6 1456E788
Max Ammo MIR-2000 1CBD9E60 14DF089C
4CBD9E62 1456E788
4CBD9E66 1456E788
Max Ammo R-M01 1CBD9EE0 14DF089C
4CBD9EE2 1456E788
4CBD9EE6 1456E788
4CBD9EEA 1456E788
Max Ammo S-37A 1CBDA130 14DF089C
4CBDA132 1456E788
4CBDA136 1456E788
Max Ammo SU-35 1CBD9E00 14DF089C
4CBD9E02 1456E788
4CBD9E06 1456E788
Max Ammo SU-37 1CBD9E20 14DF089C
4CBD9E22 1456E788
4CBDA126 1456E788
4CBDA12A 1456E788
Max Ammo TND-ID5 1CBD9E70 14DF089C
4CBD9E72 1456E788
4CBD9E76 1456E788
4CBD9E7A 1456E788
Max Ammo X-02 1CBDA150 14DF089C
4CBDA152 1456E788
4CBDA156 1456E788
4CBDA15A 1456E788