Ben pls

-Cleaned up the audio files being used (others need work too)
--No silence before/after effect, it sounds off (especially with good
headphones)
--Removed noise in background
--Reduced volume of hit5
--Ben y u take all deh credits :p
-Prevent splat when dead
-Fixed killme setting isDead early
-Add death explosion sound
-Prevent ColliderKill from killing more than once