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• Clouds of Twilight level

Select Score Attack or Arcade mode. Complete level 9A or 9B (Iceberg Base or Sea of Clouds) with at least a four star rank. The Great River Valley or Sea of Twilight level will appear instead of the usual level that folows. Note: To earn a star, complete a stage with at least 50% shot down. You will lose one star if you are shot down. You will lose all stars if you have to use a continue.

• Easier Achievements / Trophies

You can switch on the EX options you unlock while playing the game and they won't affect your ability to Achievements / Trophies. This means you can add continues, lives etc.

• EX Option Unlockables

These can be unlocked while playing through Arcade Mode and only take effect while playing Arcade Mode.

Unlockable	How to Unlock
5 Game Credits	Get a Game Over one time
7 Game Credits	Get a Game Over three times
9 Game Credits	Get a Game Over five times
Aircraft Count Decreased to 1	Play a Secret Stage five times
Aircraft Count Increased to 5	Play a Secret Stage one time
Aircraft Count Increased to 9	Play a Secret Stage three times
Aircraft set to Highest Speed	Play through four different branched stages
Aircraft set to Slowest Speed	Play through all eight different branched stages
All Smoke Not Displayed	Score over 1,000,000 points
Always Advance to Secret Mission 14	Play Emergency Orders twenty times
Armor set at 1%	Get a down rate of 70% twenty times
Automatic Gun	Clear Stage 3 Emergency orders
Automatic Lock-On	Reach the ending ten times
Automatic Missle Fire	Reach ending 'A'
Combo set till Death or Stage Clear	Get a combo totalling 3,000 points
Combo Window Twice as Long	Get a combo totalling 1,000 points
Enemies No Longer Attack	Shoot down 10,000 enemies
Enemy Attack Leveled Down One Time	Shoot down 1,000 enemies
Enemy Attack Leveled Down Three Times	Shoot down 5,000 enemies
Enemy Attack Leveled Down Two Times	Shoot down 3,000 enemies
Fast Climax Gauge Recovery	Activate Climax Mode 50 times
Gun power Down	Shoot down 200 enemies with your guns
Gun Power Up	Shoot down 50 enemies with your guns
Hide User Interface	Score over 2,000,000 points
Invincibility against Enemy Fire	Get a down rate of 70% fifty times
Large Lock-On Cursor	Reach the ending one time
No Explosion Smoke Displayed	Score over 800,000 points
No Lock-On Cursor	Reach the ending five times
No Missle Recovery	Fire a total of 2,000 missiles
No Missle Smoke Displayed	Score over 600,000 points
Slow Climax Gauge Recovery	Activate Climax Mode 100 times
Take Half Damage	Get a down rate of 70% ten times
Unlimited Climax Gauge Recovery	Activate Climax Mode 200 times
Unlimited Game Credits	Get a Game Over ten times
Unlimited Missle Recovery	Fire a total of 5,000 missiles

• Golden Valley level

Select Score Attack or Arcade mode. Complete level 5 (Coastal Industrial Zone) with at least a four star rank. The Great River Valley or Sea of Twilight level will appear instead of the usual level that folows. Note: To earn a star, complete a stage with at least 50% shot down. You will lose one star if you are shot down. You will lose all stars if you have to use a continue.

• SEEEEGGAAAAA

Hold B during the opening screens to hear the calssic SEGA logo sound.

• Trophies

Complete each requirement to get the specified Trophy. There are 8 Bronze Trophies, 3 Silver Trophies and 1 Gold Trophy.

Trophy	Description
50 Combo (Bronze)	Got a combo of 50 in Arcade mode.
Across enemy lines (Bronze)	Cleared Stage 10 in Arcade mode.
All Clear! (Gold)	Cleared Arcade mode with ending A.
Climax Mode (Bronze)	Activated Climax Mode in Arcade mode.
Emergency Order (Bronze)	Cleared an Emergency Order in Arcade mode.
Rank In (Bronze)	Uploaded a Score Attack score to rankings.
ROLL (Bronze)	Performed a roll in Arcade mode.
Stealth bomber (Bronze)	Cleared Stage 5 in Arcade mode.
Strike Eagle (Silver)	Cleared Arcade mode with the F-15E.
Super Hornet (Silver)	Cleared Arcade mode with the F/A-18E.
Super Tomcat (Silver)	Cleared Arcade mode with the F-14D.
Triple A (Bronze)	Get a AAA ranking in Arcade mode (for Shot Down, Combo, or Play Time).