When the game was released on mobile platforms in Japan, the key art for certain characters were changed. Characters were altered to have less revealing outfits compared to the promotional material.

The "Foolish Sisters" enemy are three caskets with the crests and weapons of Three, Four and Five from Drakengard 3 engraved on them. They also display abilities they had in the Drakengard manga Drag-on Dragoon: Utahime Five that were not originally from the game.

• Five shoots a beam of light
• Four creates a shield
• Three shoots webbing thread

The "Loving Couple" enemy type is based on Two from Drakengard 3 using Cent's swords and Egregori's armor.

Zero's cleric job features her using Manah's staff from Drakengard 2 as her main weapon.