Intelligent Systems also made Tetris Attack.

This was originally officially called Super Mario RPG 2, and was set for the 64DD(another lost disc drive add-on). The paper feel was still predominant in these early stages.

Later, Nintendo Power called it Super Mario Adventure. In some screen shots were Gargantua Blargg and Poochy, who were later ditched.

In the parade at the end, I'll bet you didn't notice Fire Luigi leads. Why does he need fire power?

Super Mario Adventure: Official Page: Here, you can see the game wasn't changed much except for its visual qualities. Here's a total screen shot page.
Even so, Toad Town was then appropriately called "Mushroom Kingdom" and there's a ? block we never see near Shiver City's path.

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