Fix Player animation
Fix sound
Remove most entities
It's getting a cluttered mess
Rename LEVEL to level
Change instance variable to lower case
Reorganize code
Fix sounds and add debug options

activate by adding to the page's url #debug
Start moving level configuration to a manifest file
Convert SoundManager to use level manifest
Level loads entity config files
Add shorthand to get the active level
Update Player.json
Make EntitySpawnerManager and Player use the config files