Unlock Anaval Gato - Clear Ace Pilot mode with Kou Uraki.
Unlock Black Tri-Stars - Clear Ace Pilot mode with Char Aznable.
Unlock Char Aznable - Clear White Base mode with any one.
Unlock Cima - Clear Ace Pilot mode with Anaval Gato.
Unlock Johnny Ridden - Clear Ace Pilot mode with Black Tri-Stars.
Unlock Shin Matsunaga - Clear Ace Pilot mode with Johnny Ridden.
Unlock Yuu Kajima - Clear Thoroughbred with any one.
Unlock Braw Bro Mobile Armor - Clear all Zeon missions in Ace Pilot mode.

Clear White Base mode with any rank to unlock a new title screen.

Enter nothing in the ace pilots name box and the name Mark Simmons (creator of the Agile Strike Gundam) will be there instead.