Update V0_318

Quick Fixes:

• Fixed the absorbing blocks falling / having the same identity
• Fixed the enemies that had the same identity
• Reduced Waves for the arena
• Tweaked the platforms to help preventing a bit from falling
• Fixed the buttons that were deactivated after clicking on them
• Fixed issues where the door of the arena wouldn't reopen once the player respawned
• Modified the spawner of the arena so the enemies only spawn when the player gets in the arena

More fixes incoming:

• Add the option to modify the mouse sensitivity 
• Add the option to modify the sounds 
• Musics can sometimes overlap eachothers

Improvements incoming:

• Add health to be spawned in the arena