Dynamic BETA version 1.3
By Vukelich Sasha

 v1.3:
-added two more levels
-added pre-game help screen
-added level introductions
-added easy difficulty level
-added two more enemies
-added one enemy effect
-improved particles
-improved explosions
-improved sound quality
-improved frame rate optimization
-decreased minimal processor speed needed for normal gameplay
-ship starts with full shields
-score for difficult level counts +50%, and -50% for easy

 v1.2:
-colors
-one more weapon

 v1.1:
-added second level
-added rotating
-added sound on/off
-added menu
-added two difficulty levels
