Version 2 of game published - Attack of the Bacilli

I uploaded an update to Attack of the Bacilli. 

Added a start screen with a bit about the story and the controls of the game.

Updated firing of antibodies, allowing continual firing by holding down the spacebar, and updated the antibody image. 

Added tracking of firing speed, as well as updated the Upgrade Screen

Updated player and enemy images, as well as adjusted how much the player can move.