Neon Coil

Cinevva's analyzer read this game's design doc and its source, then wrote the brief below. "Make your own" hands it to the game creator as your opening message, so you start from a real spec rather than a one-line idea.

Create “Neon Coil,” a portrait-oriented, single-screen neon Snake arcade game. Use a dark navy/near-black playfield with a subtle blue radial glow, fine dim cyan-blue square grid, and thin luminous cyan rectangular frame. The playable board is a fixed 22-column by 30-row grid centered within the tall game area. Draw all game objects as clean glowing pixels/cell shapes: the snake is a chain of rounded square segments, with a bright pale-cyan head and two small dark eyes facing its current direction; its body transitions through luminous blue/cyan tones. A single collectible core is a pulsing hot-pink/magenta glowing orb with a tiny white highlight, placed at a random unoccupied grid cell.

Gameplay is classic grid-based Snake. Start with a three-cell snake near the center, facing right. Move one cell at a time continuously; the player steers up/down/left/right, but cannot reverse directly into the current direction. Each time the head reaches the core, award one point, grow the snake by one segment, spawn another core on an unoccupied random cell, and increase movement speed. Begin at roughly 155 ms per step and accelerate per collected core, with a lower limit around 62 ms; display a compact speed multiplier at top right. The run ends immediately if the snake hits a board edge or collides with its own body. On game over, pause movement and show a centered overlay headed “SYSTEM CRASH,” report how many cores were collected, and offer a “PLAY AGAIN” button that resets the run. There are no enemies, hazards, or other collectibles.

Use responsive portrait framing, with the game board occupying most of the tall screen. Keep a HUD over the board: “SCORE” and a large glowing cyan numeric score at the upper left, “SPEED” and a glowing pink multiplier at upper right, plus a small centered instruction line near the top saying “ARROWS / WASD · SWIPE OR TAP TO TURN.” Place a translucent dark overlay over the playfield at the start, with a centered dark rectangular panel outlined in cyan glow. It contains the large letter-spaced cyan title “NEON COIL,” a short explanation that eating glowing cores makes the snake longer and faster, and a bright cyan “START RUN” button. The overlay disappears during play. Keep a four-button directional pad at the bottom center in a cross arrangement (up above left/down/right), with outlined dark-blue translucent buttons and arrow glyphs, suitable for touch; also support arrow keys and WASD on keyboard and swipe gestures on the board to steer. Use a restrained, polished retro-futurist arcade aesthetic: monospace typography, cyan and electric-pink neon accents, soft bloom/glow, fine grid, and lots of dark negative space. Preserve readable UI and the game’s minimalist presentation.