Different endings:
Unlock the listed ending by performing the corresponding task:
ENDING – HOW TO UNLOCK
Bad – Reach Old Road 5 and defeat Mother Genome before encountering Jadore.
Normal – Defeat Mother Genome after gaining Jadore as a character; or defeat all human genomes and Edward without completing 50 floors of Abyssal Gate.
True – Activate all flags, get all characters, defeat human genomes, clear Abyssal Gate, defeat Edward, then win the battles that follow.
Unlock Spectral Souls characters:
To unlock Hiro, Rose, and Yunellia, complete Old Road 4 in Story mode after encountering Aria