Update Ver.0.15.1 - Change score calculation

Hello! I have an update for you.
Note: Leaderboard will be reset

[h3]Changes[/h3]

• Change score calculation
  
• Changed wall effects to fade out when the car stops
  
• Changed the look of the tutorial UI displayed on the left
  
• Changed the sound of bomb explosions
  
• Added sound of bombs bouncing
  

[h3]Fixes[/h3]

• 360 spins in the air to repeat multiple consecutive rotations to earn a great score.
  
• Collision of overhead wire poles is huge.