Optimization and Behind-The-Scenes Updating

The glitch that occurs after approximately 800 kills has been fixed. The glitch caused an endless stream of zombies to pour out of every possible spawning location at a rate that completely lags computers of all calibers.

Other updates include:

Boss Zombie Re-skin: The skin of the boss zombie has been updated to fit more with the aesthetic of the other zombies. This may change.

All textures and assets have been compressed and/or simplified to allow for a better experience within the game. This will hopefully fix screen tearing.

Some code has been simplified to use less resources.

Bug fixes.