Successfully complete all levels in sky canvas mode with more than 90 points to unlock the Auto Gyro.

Accumulate enough acrobatic points in adventure mode to have ten of your mission grades marked with circles to unlock the Corsair.

Successfully complete all levels in target mode with a gold rank to unlock the Gold UFO.

Successfully complete adventure mode to unlock the Me-262.

Successfully complete all levels in the adventure mode with an A rank to unlock the Silver UFO.

Successfully complete all levels in target mode with a total time of 10 minutes or less to unlock the Stealth Fighter. -From: EtrNL@tekken.cc

Successfully complete the Stormy Seas level in adventure mode by landing on an aircraft carrier. The pontoons will allow your aircraft to land on the water.

Successfully complete all adventure mode levels with at least a B rank to unlock custom parts.

Land at the Mid-Air Rendezvous alternate landing strip in adventure mode to find a wing that can be attached to the Swordfish to convert it into a triplane. Note: Unlock the Special Radar in target mode to make it easier to find the landing strip.

The four Shinden parts are hidden throughout adventure mode on alternate landing strips. Land at the strips to collect the parts. Note: Unlock the Special Radar in target mode to make it easier to find the landing strips.

Right Wing: The Adventure Begins level alternate landing strip.
Left Wing: The Labyrinth level alternate landing strip.
Fuselage: The Towers Of Terror alternate landing strip.
Jet Engine: The Great Divide level alternate landing strip.

Successfully complete target mode to earn medals which can be traded for optional features:

Radio: 4 Gold medals
Music Tracks (12): 1 Silver medal per track
Special Radar upgrade: 2 Gold medals
New emblems in customize aircraft mode: 2 Silver medals
Unlimited boost for jets: 2 Gold medals

There are four lost map pieces scattered around the islands. They are located at Take The Low Road, The Labyrinth, The Ancient Forest, and Over The Falls. The order that the maps are collected will determine which level will follow. Play adventure mode three times with a different combination to get through all three levels:

Take The Low Road, The Labyrinth, The Ancient Forest, Over The Falls, The Valley Of Fire
The Labyrinth, Take The Low Road, The Ancient Forest, Over The Falls, The Valley Of Fire
Take The Low Road, The Labyrinth, Over The Falls, The Ancient Forest, The Great Falls
The Labyrinth, Take The Low Road, Over The Falls, The Ancient Forest, The Great Falls
Take The Low Road, The Ancient Forest, The Labyrinth, Over The Falls, A Tight Squeeze, Maximus
The Labyrinth, Over The Falls, Take The Low Road, The Ancient Forest, A Tight Squeeze, Maximus

Card	Name	Unlocked by
1	The Adventure Begins	Complete The Adventure Begins two times
2	The Desert Express	Complete The Desert Express two times
3	Take The Low Road	Complete Take The Low Road two times
4	The Labyrinth	Complete The Labyrinth two times
5	Stormy Seas	Complete Stormy Seas two times
6	Blown Away	Complete Blown Away two times
7	The Great Divide	Complete The Great Divide two times
8	Relief From Above	Complete Relief From Above two times
9	The Ancient Forest	Complete The Ancient Forest two times
10	Mid-Air Rendezvous	Complete Mid-Air Rendezvous two times
11	Heart Of The Mine	Complete Heart Of The Mine two times
12	Towers Of Terror	Complete Towers Of Terror two times
13	S.O.S.	Complete S.O.S. two times
14	Over The Falls	Complete Over The Falls two times
15	Storm Before The Calm	Complete Storm Before The Calm two times
16	A Tight Squeeze	Complete A Tight Squeeze two times
17	The Valley Of Fire	Complete The Valley Of Fire two times
18	The Great Falls	Complete The Great Falls two times
19	Maximus	Complete Maximus two times
20	The Adventure Begins	Complete The Adventure Begins one time
21	The Desert Express	Complete The Desert Express one time
22	Take The Low Road	Complete Take The Low Road one time
23	The Labyrinth	Complete The Labyrinth one time
24	Stormy Seas	Complete Stormy Seas one time
25	Blown Away	Complete Blown Away one time
26	The Great Divide	Complete The Great Divide one time
27	Relief From Above	Complete Relief From Above one time
28	The Ancient Forest	Complete The Ancient Forest one time
29	Mid-Air Rendezvous	Complete Mid-Air Rendezvous one time
30	Heart Of The Mine	Complete Heart Of The Mine one time
31	Towers Of Terror	Complete Towers Of Terror one time
32	S.O.S.	Complete S.O.S. one time
33	Over The Falls	Complete Over The Falls one time
34	Storm Before The Calm	Complete Storm Before The Calm one time
35	A Tight Squeeze	Complete A Tight Squeeze one time
36	The Valley Of Fire	Complete The Valley Of Fire one time
37	The Great Falls	Complete The Great Falls one time
38	Maximus	Complete Maximus one time
39	Bf-109	Complete Maximus with Bf-109
40	Bf-109	Complete Maximus with Bf-109
41	Swordfish	Complete Maximus with Swordfish
42	Swordfish	Complete Maximus with Swordfish
43	Pulse Jet	Complete Maximus with Pulse Jet
44	Pulse Jet	Complete Maximus with Pulse Jet
45	Swordfish Custom	Unlock Swordfish triplane
46	Swordfish Custom	Unlock Swordfish triplane
47	Bf-109 Custom	Unlock Bf-109 custom parts
48	Bf-109 Custom	Unlock Bf-109 custom parts
49	Pulse Jet Test Type	Unlock Pulse Jet custom parts
50	Pulse Jet Test Type	Unlock Pulse Jet custom parts
51	Me262	Unlock Me262
52	Me262	Unlock Me262
53	F4U Corsair	Unlock F4U Corsair
54	F4U Corsair	Unlock F4U Corsair
55	F117	Unlock Stealth Jet
56	F117	Unlock Stealth Jet
57	Shinden	Unlock Shinden
58	Shinden	Unlock Shinden
59	Shinden-kai	Unlock Shinden-kai
60	Shinden-kai	Unlock Shinden-kai
61	Autogyro XG-1	Unlock Autogyro
62	Autogyro XG-1	Unlock Autogyro
63	UFO Type Gold	Unlock gold UFO
64	UFO Type Gold	Unlock gold UFO
65	UFO Type Silver	Unlock silver UFO
66	UFO Type Silver	Unlock silver UFO
67	Pontoon Plane	Unlock Pontoons
68	Pontoon Plane	Unlock Pontoons
69	Movie Card	Get 2000 Acrobatic Points
70	Movie Card	Get 3000 Acrobatic Points
71	Movie Card	Get 4000 Acrobatic Points
72	Movie Card	Get 6000 Acrobatic Points
73	Movie Card	Get 8000 Acrobatic Points
74	Special Framed Card	All other cards earned
75	Special Framed Card	All other cards earned
76	Special Framed Card	All other cards earned