Yoshi's Story

Yoshi's Story
Developer: Nintendo EAD Publisher: Nintendo Platform: Nintendo 64 Released in JP: December 21, 1997 Released in US: March 1, 1998 Released in EU: May 10, 1998 This game has unused areas. This game has unused music. This game has debugging material. This game has regional differences.

Yoshi's Story is a super happy game where everyone is super happy! <3 <3 <3

Test Levels

These test levels can be entered by using the US GameShark code 883DC553 00XX (replacing XX with the respective level ID) and entering into a level in the time trial level screen while holding the GS button. You can see them in action here.

Jump Height Test (E1)

The level's layout merely tests to see how high and/or far Yoshi can jump. Sideways numbers indicate the distance up from the ground, while the straight numbers indicate the distance between the floating platforms above. At the top of the pause screen, it will say "ないデータをよもうとした", which translates to "Tried to read nonexistent data".

Cogwheel Test

A test of the Cogwheel platforms.

Cloudjin Boss Test

A test for the Cloudjin boss and see-saw platforms.

(Source: Golbez, cen, skelux)

(Videos: birby100, skelux)

Unused Music

This track sounds like the tracks that play when you open one of the pages in Story Mode, but it is never used.

Crash Debugger

A crash screen identical to the one in The Legend of Zelda: Ocarina of Time is present in this game. To access it, enter the following GameShark code:
81043880 FFFF
81043882 FFFF

When the game crashes, press L, R, Z, Up, Down, Up, Down, Left, Left, Right, Right, B, A, Start to access it.

To do: Add ways to crash the game

(Source: trashfolder.org)

Debug Mode

Enable the Gameshark code 80104698 0001 in the Japanese version to open up a menu.

To do: Add code for American version

• Debug Registers 0
• Z+left to go away
• R(0)=0 general purpose register
• R(1)=8020de40 Z-buffer head pointer
• R(2)=0 !0: display the arguments of some functions
• R(4)=0 VERBOSE
• R(5)=0 !0: disable extended display list
• R(6)=0 OAM_SELECT(ReadOnly)
• R(10)=0 !0: copy matrix (matrices?) one-by-one
• R(11)=0 FrameOffSetX
• R(12)=0 FrameOffSetY

'!' means 'not' in C/C++, so '!0' here likely means "if not zero".

(Source: Nekokabu, translation by Joe)

Regional Differences

Options menu and Story save

Japan	North America

Clear memory screen

Japan	Translation	North America
		Continue Data
おはなしモード	Story Mode	Story Ranking
トライアルモード	Trial Mode	Trial Ranking
ぜんぶけす	Erase All	Erase All

The Japanese version didn't have Story Mode save feature. For this reason, the option to erase Story Mode's save data is absent in Japanese version.

Story Mode (Continue From Page 2)
Trial Mode
Options
Practice

Oddly, the Japanese mode of US version has the fully translated "Start From P.#" banner, complete with unique font.

Also, when data is erased in the Japanese version, an explosion can be heard. In the US version, it plays a fanfare.

Secret Coins

To do: More level differences?

The secret 'Y' coin in level 1-1 that appears when Yoshi eats the heart fruit is absent from the Japanese version.

"Play other levels in Practice Mode" glitch

Japanese version has a glitch that allow the players to play any level from the first world in the Practice Mode. In international versions, this glitch is fixed. To do this glitch, at least one level must be unlocked in Trial Mode.

1. Go to Trial Mode.
2. Enter any level. (This sets the "Yoshi is alive" flag to all non-green Yoshis)
3. Exit the level by Z+Start.
4. Go to Practice Mode.
5. Die.
6. In the death cutscene, press Start button. This will bring up the retry menu. (This is possible because the non-green Yoshis are alive)
7. Selecting "Yes" will bring the players to level 1-1. Selecting "No" will bring the map screen of the first world, allowing the players to select any level from said world.

The pause screen behaves like Story Mode; The players cannot escape the level. However, completing the level will bring up the score tally of Practice Mode, and the game will reset to the main menu.

International versions fixed this glitch by resetting the "Yoshi is alive" flags when starting Practice Mode.