Sokoball

Sokoban is Japanese for "warehouse man".  In Sokoban puzzles you must generally
push a number of boxes around the screen to a designated position.  The key
word here is push.  In Sokoban puzzles that is the only way you can move any
box.  You must push it to its' destination.  Sokoball abides by this rule as
well (in most cases). 


What's the object of the Sokoball game?

Clear all of the boxes from the board by pushing them down the exit shafts.
You are not under the gun of a clock or any number of moves.  You simply must
clear all boxes from the board to "beat" or solve the puzzle.  I like the word
beat.