Small adjustment/fix + Controller Support

Season 2 Level 14 - got rid of the tricky collectible at the end of the level, since too many people were stuck there.

Fixed the 2 levels where the music wasn't muted even if you set it on mute.

The game now supports controllers. I used an Xbox controller to map the inputs but it seems to work with other controllers as well through "steam input" that you will have to enable.