HyperFighter version 0.0.2

Here's what's new in this version.

    - bullets are now always on top to avoid being hidden behind explosions
    - the player immunity after being hit is now visible and lasts for 3 seconds (previously 0.6 seconds)
    - some enemies will now target the player
    - the player hitbox has been made significantly smaller to make evasion manoeuvers much easier
    - the demo level has been made slighlty longer
    - the game window will now show the game version
    - the love file is now available allowing people on linux and mac to play too
    - the game is now opensource under the MIT License