Version 0.2

Updated the game.

What's new?
-Added two new characters: The Mechanic and The Vampire

-Added a proper end screen for the game
-Added some songs

Other changes:
-More arena layout variations
-Characters will explode if they take over 300 damage
-Sudden Death will start in 60 seconds instead of 90
-Other minor changes

Bug fixes:
-Potential fix to game not ending when only one character was left
-Other minor fixes