Kirby 64 - The Crystal Shards - Platform: Nintendo64

Get Kirby to say "Hiiii...." 
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At the title screen hold L,R and Z, while holding those 
push the A button and Kirby will say "hii!" 

High Mini-Game Difficulties
--------------------------- 
To access the higher difficulty settings for the mini-games, 
you must beat the difficulty setting before it. In the beginning, 
beat the Easy setting to unlock the Normal level. Beat the Normal 
level to open the Hard level. Then, beat the Hard level to access 
the Intense difficulty level.

Infinte Life or Stars
--------------------- 
In the beginning of a level go left as far as you can. There 
should be a star or a cake, rib, etc. After you get it press 
start, do try again and keep going back to get the thing. It 
will always be there! 

Open up Boss Battles
-------------------- 
You can boss battles by beating O2. 

Open up Sound Check
------------------- 
You can open up sound check by beating Miracle Matter. 

Secret Dark Star Level
---------------------- 
To open up the secret planet Dark Star, collect all 100 
shards and beat Miracle Matter once more. Dark Star will 
open up. At the end of the planet, you will fight the 
TRUE final boss, O2.

Bonus modes
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Collect all crystals in the game (it will say 100% on your 
file at the file selection screen) to unlock Boss Battle 
(Bosubuchi) and Movie Viewer (Zenbu Miseru) modes. 

Sound test
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If you complete the game you can unlock a sound test menu 
from the options screen. 

Extra stuff
-----------
If you go back to the beginning of some levels you will find 
an extra star piece or treat.