In the arcade version, there are 2 unused sounds of Felicia:
• One is Felicia making a screeching sound.
• Another is Felicia saying "Katta!"

In the arcade version of the game, Pyron has an unused alternate dash animation.

In the Japanese version, beating the game yields a character ending, followed by a short epilogue with the player character's portrait scrolling in the background, and finally the ending credits. In all other versions, the epilogue was cut, leaving only the scrolling picture.