Added ability to specify the quantity of enemy missiles that are generated per row. Also, tweak comment header line spacing to match everything else
Added "handicap" game option

The "Score Counter" now has a dual-purpose and can be used as a handicap. When the Score == the total number of enemies generated, the game is over. So, if you have a score of 8 and there are 10 enemies, you only need to kill 2 the entire game.