New map, polish & bug fixes

Made a clean new map instead of the one that was made in an hour without much thought during the game jam.
More polish :

• Added missing item
• Added a ramp player can slide
• Current score visible during game
• Gameplay values tweaked
• A new & improved shader for the sadness effect (a real circle around the NPC instead of turning certain tiles to gray)

Bug fixes

• You can hear sounds & music!
• Animation bug fixes
• Elevator movement fixes
• Other minor fixes