【Special Armor】
Some Mobile Suits are equipped with special armor that can nullify a certain amount of damage from ballistic attacks!
Phase Shift Armor / Variable Phase Shift Armor

The armor is designed to nullify a fixed amount damage from ballistic weapons. When damage exceeds a certain threshold, triggering Phase Shift Down, the armor changes to metallic gray and stops nullifying ballistic damage.
Trans-Phase Armor

The armor is designed to nullify a fixed amount of damage from ballistic weapons. Despite undergoing Phase Shift Down, the armor color remains unchanged, and the energy depletion is visibly undetectable to the enemy.
【Swapping】

Some mobile suits can transform into different forms even during combat by swapping packs! There is no limit to the number of times you can swap, allowing you to adapt to the battle, identify enemy's weaknesses, and conquer the battlefield!
【Transformation】

Transform from Mobile Suit form to Mobile Armor forms, such as fighter types and quadrupedal types! There is no limit to the number of transformations, so master both forms to outmaneuver your enemies!
https://store.steampowered.com/app/1857740/SEED_BATTLE_DESTINY_REMASTERED/