Successfully complete mission mode as AEUG and Titans.
Successfully complete arcade mode with the Super Gundam.
Defeat Psycho Gundam in any arcade mode level.
Reach level 9 and defeat Quebeley after getting a "Daijou" rank.

First choose VS mode and make no computer just 2 players.then choose G-Defenser as you and GMII as the player 2 then choose the background you like,start the game,when the game start, turn off G-defenser engine(by pressing R2),then land on the ground.After that,use the GMII to fly on the G-denfenser(you must be on the back of the plane).Then press X button and fly as high as you can.

Note:choose the background have less building,
choose a smaller mobile suit as player 2