The most obvious change is the inclusion of a second, mirror-image campaign. You now play as the —the enemy faction from the original game. This isn't just a palette swap. The Vower ship controls differently; it is heavier, uses "Charge" weapons, and the story is told from the antagonist's perspective. The original Japanese release required a code to unlock this; the patched EX version has it active from the start.
According to patch notes from May 15, 2025, G.rev released an update for the Switch version that introduced the following technical changes: strania la stella machina ex patched