Brain Blaster

Changes made:

• Environment assets
• Player and enemy sprites
• Death animation
• Gun fire audio
• Death audio
• UI
  • Added health bar
  • Kill count
  • Objective
• Tweaked enemy spawner
  • Enemies won't spawn in player's vision
• Tweaked game manager
  • Score/killcount logic
• Tweaked music
  • Pitch of existing music assets
• Tweaked projectiles
  • Added gun barrel offset