Here are some cheats and tips for the game Tetrisphere.
Access Any Level:
At the New Name screen, simultaneously press L, right C, and bottom C
to access the hidden text characters. Enter your name as the Saturn
icon, Spaceship icon, Rocket icon, Heart icon, and Skull icon and you
will have access to any level.
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Access Extra Music:
At the New Name screen, simultaneously press L, right C, and bottom C
to access the hidden text characters. Enter your name as G (Alien-head
icon)MEBOY to hear some new music.
Bonus Game:
At the New Name screen, enter the name LINES to access a hidden game.
View Credits:
At the New Name screen, enter the name CREDITS to view the credits.