3-D Tetris

What's that, Lassie? Tetrominos fell down a well? A three-dimensional well?!

I'd better get 3-D Tetris!

Internal Name
Like all Virtual Boy games, 3-D Tetris has an internal name near the end of the ROM at. In this case, the name is POLYGOBLOCK, the title of the unreleased Japanese version.

Japanese Localization
As mentioned above, a Japanese version was in the works but cancelled due to the poor reception and sales of the Virtual Boy as a whole. Still, a number of Japanese-language menu graphics are in the US ROM, although oddly some of them say "3-D Tetris" in Japanese and not "Polygo Block".

Unused Splash Graphics
Splash screen graphics for T&E Soft and Nintendo  are present near the title screen. In the final game, the opening credits are simply laid out in text form, as in early Tetris titles (such as the Game Boy version).