Space Shooter

My modifications to the game:

1) Added a completely new level with a lot of walls and enemies. Should remind you of zombie games. Hard, but winnable.

2) Added a new level with new BOSS enemy. Space Dark Souls. But easier.

3) Added Score and High Score at the corner. Though... who cares for the score?

4) Added the display of enemies/health left to win the level in the middle of the screen.

5) To optimize zombie level used some enemy spawners and modified them a little.