Complete the following History Missions to unlock alternate costumes for specified characters on the Pilot select screen.

Costume	How to unlock
Amuro (0079)	Clear "Escape".
Amuro (Z)	Clear "Riders in the Skies - Epilogue".
Char (0079)	Clear "Space Fortress A Baoa Qu".
Char (Normal suit)	Clear "Space Rainbow (Neo Zeon)".
Char (Z)	Clear "Love is the Pulse of the Stars".
Haman (Normal suit)	Clear "Warriors, Again... (Neo Zeon)".
Haman (ZZ)	Clear "Conviction in the Cosmos (Axis)".
Katejina (Long hair)	Clear "Ascent of Angels (Zanscare)".
Laura Rolla	Clear "Moonlight Butterfly".
Milliardo (Zechs)	Clear "The Final Victor (White Fang)".