This game is a clone of Sega's 1990 Columns. It is mainly based off the
Genesis version but also includes the blocks of the Game Gear and Master
System ports.

System requirements: Intel 80286 @10Mhz (Intel 80386 @33Mhz recommended) and
VGA card with 256Kb. It was tested under DOSBox (3000 cycles) and Windows XP
(Intel Celeron 1.5Ghz) and worked as expected.


ORIGINAL MODE

  Arrange blocks into sequences of three or more identical blocks (vertically,
  horizontally, or diagonally) to make them disappear. The score increases
  with the number of blocks removed in one move. When a chain-reaction happens
  the score of the previous reactions is added again.


FLASH COLUMNS

  Unlike original mode, there's no score in Flash Columns. Instead, the player
  has to remove a specific gem located at the bottom of the grid as fast as
  possible.


CONTROLS

  Menus:
    UP/DOWN     Move to the next or previous menu item.
    LEFT/RIGHT  Change setting.
    ENTER       Select menu item.

  In-game:
    ENTER       Shift gems order.
    DOWN        Push column down.
    LEFT/RIGHT  Move column left and right.
    P           Pause.

  Always available:
    S           Switch between sound effects, music or silent.
    F12         Take a screenshot.
    ESCAPE      Quit.

  Note: joystick support is available in the "options" menu.

Enjoy.
2022 - Mike Hawk

(This clone is obviously not endorsed by Sega)