Also known as: Yoshi no Tamago (JP), Mario & Yoshi (EU)
Yoshi is a puzzle game starring the titular green dinosaur, made by the people who later brought us Pokémon. The music even sounds like Pokémon.
The baby Yoshi on the Japanese title screen has unused graphics for its bottom half. Presumably, they intended to show both half- and fully-hatched versions.
An earlier, less shiny set of Yoshi sprites can be found near the end of CHR ROM.
A single tile for one of Star Yoshi's sprites was overwritten, but the early sprites are otherwise fully intact.
Part of a sprite for a scrapped fifth type of Yoshi, which seemingly would have been bigger than any of the types that are used. These tiles are all that's left of it.
A zero, seemingly a remnant of an early font. This is similar to the point graphics from Super Mario Bros. 3, and may have served a similar purpose.
A set of tiles that would have been used to add shadows to the menus.
Below is a mockup of what this might have looked like.
Every region has a different title. In Japan, it's Yoshi no Tamago (Yoshi's Egg), in the US it's Yoshi, and in Europe it's Mario & Yoshi. The Japanese title screen has an extra Yoshi egg and the baby Yoshi's head is at a slightly different angle.
The Yoshi series
|SNES||Super Mario World 2: Yoshi's Island (Prototypes)|
|Nintendo 64||Yoshi's Story|
|Game Boy Advance||Yoshi's Island: Super Mario Advance 3 • Yoshi Topsy-Turvy • Yoshi Sample|
|Nintendo DS||Yoshi's Island DS (Demo) • Yoshi Touch & Go|
|Nintendo 3DS||Yoshi's New Island • Poochy & Yoshi's Woolly World|
|Wii U||Yoshi's Woolly World|
|NES||Yoshi • Yoshi's Cookie|
|SNES||Yoshi's Cookie (Prototype; Kuruppon Oven de Cookie) • Tetris Attack|
|GameCube||Nintendo Puzzle Collection|
|Game Boy (Color)||Yoshi • Yoshi's Cookie • Tetris Attack|
|Super Mario World|
|SNES||Super Mario World • Yoshi's Safari|
|Game Boy Advance||Super Mario World: Super Mario Advance 2|