- FIXED enemy health being set to 0 on game start and tweaked their stats plus scaling.

- FIXED game over menu not appearing properly on battle loss.

- FIXED ammo not reloading at the end of waves.

- FIXED Ammo upgrades not applying correctly.

- Changed the implementation of most of the audio and changed some SFX.

- Reworked the UI colour palette.

- Added a screen to display the control scheme and placed a background panel on the HUD.

- Swapped 8 enemy models to better fit the overall style.

- Added full auto fire mode as an upgrade.