Doki! Doki! Yūenchi: Crazy Land Daisakusen - Wikipedia
NES – Doki Doki Panic | Obscure Video Games
Doki Doki Amusement Park
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!
Audio Differences- Doki Doki Panic vs. Super Mario Bros. 2 - video Dailymotion
DOKI DOKI PANIC YUME KOJO NES Fuji TV Nintendo Famicom Disk System Box Japan | eBay
NES – Doki Doki Panic | Obscure Video Games
Doki! Doki! Yūenchi: Crazy Land Daisakusen - Wikipedia