Update: fixed a few glitches

UPDATES

• When you lose, the screen displays the game over screen and also will tell you to press space to try again.
• Fixed a glitch where when an enemy gets past all the defenses and in the exit point, it would cause you to lose more lives than you should.
• Nerfed the health of the basic enemies so that the first few levels aren't that hard

It's official: a sequel is on the works