Neon FX

Open with main menu g, then Games 6.

A high-frame-rate neon animation demo. Full-screen 8-bit palette Sprite: the pixel-index field is generated only when changing the pattern or moving the core; normal frames rotate the 256-color palette and push the canvas to the display. Also includes a software-rendered rotating cube (CUBE).

Screenshots

Shortcuts

Key	Action
e a s d	Move core / orbit cube
c	Cycle color themes
m or , .	Cycle Vortex / Plasma / Tunnel / Cube
- =	Decrease / increase speed
r	Reverse flow / rotation
Space / GO	Trigger a bright pulse
h	Help (includes measured FPS)

Notes

• No header / tip bar — animation fills 240×135; measured FPS overlays the top-left corner.
• The full-screen Sprite uses about 32 KB and is released immediately on exit.
• CUBE is a DIY perspective projection + painter's algorithm fill — no external 3D library.
• Press ESC / GO to return to the main menu.