This commit introduces medium enemy types with updated sprite sheets and configurations, implements a core damage system that reduces health when enemies reach the end point, adds new wave configurations for levels 7 and 8 with mixed enemy types, enhances the tower upgrade menu UI by removing animations and improving layout, updates enemy spread values for better balance, and fixes various visual elements including camera scroll factors and text positioning.
- Added new audio assets including sound effects for towers (cannon, flamethrower, gatling gun, laser) and interface sounds (portal, coin, upgrade)
- Integrated background music tracks for levels
- Enhanced tower animations with new fire animations for cannon and laser towers
- Improved tower behavior with visual effects like laser beams and particle effects
- Updated tower configurations including AOE ranges and costs for different levels
- Modified wave progression to include more challenging enemy combinations
- Added sound feedback for key game events (tower placement, upgrades, waves)