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Ikasuze! Koi no Doki Doki Penguin Land MD (イカスぜ！恋のどきどきペンギンランドＭＤ lit. Ikazase! Love's Pound Pengin Land MD) — called just Doki Doki Penguin Land (どきどきペンギンランド) on Sega's archive — is a Sega Mega Drive game released only in Japan as part of the Sega Game Toshokan service. It is an update to the previous games in the series, Doki Doki Penguin Land and Penguin Land, and features the same basic gameplay of having to guide an egg to the bottom of the screen.
The game is very loud and screechy compared to other Mega Drive titles when run through many emulators as it was initially assumed some of this sound would be filtered by the time it left the television speakers. In Kega Fusion, it can be partially fixed by checking the "Filter" option (Ctrl + F11).