fps game demo thing v0.3

Description

The *FPS Game Demo v0.3* offers an early look into a sandbox-style first-person shooter still in its infancy. The demo showcases core mechanics like movement with WASD, jumping, wall running, and a variety of controls for aiming, shooting, reloading, and special moves such as punching, rocket firing, dashing, and even pausing time. Two versions are available: **0.3** and **0.3.1**, with the latter bringing significant performance improvements and bug fixes. While 0.3.1 is recommended for most players, the original remains accessible for those with older hardware or a preference for its visual style. Notably, the demo includes placeholders for future content and upcoming graphics settings, especially to improve performance on laptops. The developer also notes that the 0.3 versión is built for 32-bit systems, while future releases will support 64-bit. This project is a work in progress, with a devlog documenting ongoing development. This early versión gives a glimpse into what's to come.