I've implemented an advanced AI system inspired by Arongranberg's A* project, bringing a whole new level of challenge to the game. The enemies now showcase improved behavior patterns, unique damages, and varying speeds.

I've added is a dynamic and interactive character selection screen. Players can try out different characters and guns before starting the game, which adds a new level of customization and immersion to the experience.

I've introduced unique bullet damages and monster healths, making each encounter feel distinct. Additionally, you'll notice visual effects and animations when enemies hits on you.

To enhance the overall immersion, I've added various visual and audio improvements. The game now boasts shake effects, detailed textures, and special effects such as muzzle flashes, damage pop-ups, and more.

I've also focused on enhancing the user interface and player experience. You'll find a health bar, menu UI, game over UI, and pause UI, ensuring smooth navigation throughout the game.