TMK | Super Mario Bros. 2 Madness | From Doki Doki Panic to SMB2
NES – Doki Doki Panic | Obscure Video Games
Doki! Doki! Yuuenchi (Japan) ROM < NES ROMs | Emuparadise
Play NES Doki! Doki! Yuuenchi (Japan) Online in your browser - RetroGames.cc
Doki! Doki! Yuuenchi: Crazy Land Daisakusen (NES) · RetroAchievements
Famicom NES Game SP888 4in1 Doki Doki Crazyland,Adventures in The Majic Kingdom | eBay
Romhacking.net - Hacks - Super Doki Bros
Doki! Doki! Yūenchi: Crazy Land Daisakusen - Wikipedia
Romhacking.net - Translations - The Trolls in Crazyland
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!
Amazon.com: Super Mario USA (Brothers 2/Doki Doki Panic), Famicom (Japanese NES Import) : Video Games
Doki! Doki! Yuuenchi AKA Amusement Park NES Music 12 - YouTube