   _                  _          ___ _ ___ ___
  | |   ___  ___ _ _ (_)___ ___ ( _ ) / _ \_  )
  | |__/ _ \/ _ \ ' \| / -_|_-< / _ \ \_, // /
  |____\___/\___/_||_|_\___/__/ \___/_|/_//___|

  A Mini Retro Puzzle for DOS PCs (286+, VGA, OPL-2/MIDI), r30 -- 2018-07-23

  This is a simple DOS-based puzzle game,  which initially fit in just 8 KiB
  but has since grown into a  16 KiB monstrosity, but you do get two totally
  fresh soundtracks and support for  MIDI  sound devices, plus added support
  for slower machines such as 286 PCs. Also, this version of Loonies finally
  features  level progression,  so the game varies in speed/difficulty every
  time you clear more blocks. How to play: There are 2x2-blocks falling down
  the top, with two different colors.  Use LEFT/RIGHT/DOWN to move the block
  and use UP to rotate the block. With SPACE you can drop the block (it will
  fall fast until it lands).   Your goal is to create 2x2 blocks of the same
  color.  These will be "marked" by the sweeper (a line that moves from left
  to right) when it passed the blocks. When the sweeper restarts on the left
  side, all marked blocks will be removed and you earn points. The HJKL keys
  can be used as alternative  (vi)  to the arrow keys. Use "S" to switch the
  soundtrack (the default is "Descent" by Tim Samoff <samoff.com>, the other
  is "Clickedy" by yours truly,  "S" toggles between those during the game).
  The pause toggle is "P", "Q" quits the game.    -- thp <thp.io>, July 2018
