Lethal Skies 2 - Platform: Playstation 1

Unlock New Planes:
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To unlock new planes, complete the objectives listed below:
F-14:   Beat Mission 1
A-10:   Beat Mission 2
JAS-39: Beat Mission 3
AV8B:   Beat Mission 4
F-15E:  Beat Mission 5
EF2000: Beat Mission 6.2
F/A 18: Beat Mission 7
F5Z:    Beat Mission 8 (S Rank)
SU27:   Beat Mission 9.2
F-22:   Beat Mission 10
S-37:   Beat Mission 11
F-25,   Beat Mission 15 (S Rank)
S-47:   Beat Mission 16 (S Rank)
YF-23:  Beat Mission SP1 (S Rank)
SU-37:  Beat Mission SP2 (S Rank)

SP-1 mission:
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Successfully complete mission 4 with an "A" or greater rank.

SP-2 mission:
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Successfully complete mission 9.2 with an "A" or greater rank.

Every plane:
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In the main menu, push L2(2), Right, R1(3), Left(2), R2(4), Start 
Every plane in campaign mode and two-player mode will be unlocked.

All campaign missions:
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After using the ALL PLANES code, push Down, R2, R1, Up(2), L1, L2, L1, 
Start at the main menu.

All paint schemes:
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Press Left, Right, Left, Right(2), Left, Right, Left, L2, R2, Square(3), 
Start at the main menu. Press Square at the hanger to access the new 
paint schemes.