Dodge the creeps

Change log: v0.2

1. New features
   1. Added power up to reduce size
   2. Added button to toggle fullscreen
   3. Added background change
2. Bug Fixes
   1. Screen Border issues in Mac
   2. Multiple sounds on death
   3. Display of start screen in between game play
3. Enhancements
   1. Change game difficulty
      1. Reduce player and mob sprites
      2. Reduce Mob base speed range and added scaling as a function of score.  
   2. Rework on UI elements
   3. Changed player particles to ghost texture