- Prince of Nightmare Novel
Normal enemies Edit
Bonus bosses Edit
- Seth (Required to be defeated in order to unlock its fusion)
- The Jail is filled with references from other anime or video game series, most notably Castlevania, Pokémon and Jojo's Bizzare adventure. This alludes to Natsume's plagiarism and his complete lack of inspiration.
- In the original Japanese release of the game, there was a bug where the player could fall out of the map of Sendai's Jail. It was patched in Ver.1.01.
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