"Includes classic Tetris and five variations: Stratosphere, which
features meteors that can either help or hurt in eliminating rows;
Earthquake, where tremors shake the falling shapes and move them
around; Tempest, a double Tetris game where players are switched back
and forth between screens; Ice, which has falling icicles that will
knock into the falling shapes and make them crash down; and Fire,
where heat can cause a chain reaction and melt multiple rows."
--[Wikipedia.org][1]

See also: [Tetris Gold][2], [Tetris Max][3], [Wesleyan Tetris][4]

Compatibility
Architecture: PPC

Minimum requirements: 500MHz G3, 128MB RAM, 800x600 resolution, Mac OS
9. Archive is a hybrid .iso image for Mac OS 9, Mac OS X, and Windows.

  [1]: http://en.wikipedia.org/wiki/Tetris_Elements
  [2]: http://macintoshgarden.org/games/tetris-gold
  [3]: http://macintoshgarden.org/games/tetris-max
  [4]: http://macintoshgarden.org/games/wesleyan-tetris