1. Adjusted keyboard arrow key vertical speed (may introduce settings later on for customization).
2. Optimizations, cleaning up unnecessary clutter that was causing frame rate issues.
3. Add effects to disappearing rubble.
4. Resize some player GUI to make gameplay more bearable.
5. Update player GUI visuals (e.g. better looking icons).
6. Fix odd building glitch in Office Building.
7. Fix shelving issues that was causing shelves to fly like superman.