Yume Koujou Doki Doki Panic ROM - Famicom Download - Emulator Games
Yume Koujou : Doki Doki Panic
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Doki Doki Panic Club!(NES)-Concept Title Screen by RetroReimagined on DeviantArt
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Doki Doki Panic English(FDS Emulated) Game Cartridge for NES/FC Console - AliExpress
Found an NES version of Doki Doki Panic on eBay! Thought it'd be a hack of the original sprites on top of Mario 2 but this appears to be the original game!