Update Ver.0.18.3 - 4 adjustments

Hello! Here's what's new in this update

[h3]Changes[/h3]

• Second Boss Stage: Adjusted invisible walls after the slope jump to prevent players from crashing into the wall.
  
• Tweaked the brightness of lights to better match the background lighting.
  
• Adjusted the sound effects when sliding along walls.
  
• Nitro Landing: Fine-tuned speed calculations on landing. (Landing while using nitro. Nitro landing)