Justice Gundam is in Phase 2,chapter 3 in mission mode.
Calamity,Raider and Forbidden Gundams are also found at Phase 2,chapter 3 in mission mode.
Providence Gundam can be obtained by beating at least 20 levels of survival mode.
Wing Zero is found at Phase 4,chapter 1 in mission mode.
Burning gundam is found at Phase 5,chapter 2 in mission mode.
Tallgesse III is found at Phase 1,chapter 3 after beating mission mode.
Master Gundam is found at Phase 5,chapter 2 in mission mode.
Strike Rouge is found at Phase 2,chapter 3 in mission mode.
M1 Astray(Asagi) is found at Phase 3,chapter 2 in mission mode.
M1 Astray(Juri) is found at Phase 5,chapter 2 in mission mode.
M1 Astray(Mayura) is found at Phase 5,chapter 2 in mission mode.
Unlock the Survival Mode
Finish the time trial mode within 3 minutes.
Unlock the tag team
Finish all phases in the mission mode.
Get Zex's Gundam
On mission 3-1 fight the first battle, then go right and fight that battle, Then go forward and fight that battle. After that you will see a question mark. Go to it and beat him. Then you have to fight the final battle and win to unlock him.
To unlock a power up for your gundam press L2 once and you will power up for a short time into/power up (if your the aegas you transform and fly around for a short time and have unlimited firing power until it runs out of ability) your gundams attack or flying ability. If you need help use the booklet in the case.
Upgrade your gundam
To power up your Gundam first press select the your gundam kneels and you see numbers around it ignore the numbers press (Circle, Square, Triangle,and then X) why upgrade it stronger attack, gun upgraded, Thrusters upgraded, and you'll also regain a little armor lost and/or BA.