A retro 80s-style hockey game where all team positions are played by different dinosaurs, built as a single-file HTML5 Canvas game.

Open index.html in any modern web browser. No server or build step needed.

Each team has 5 dinosaurs, one per hockey position:

Green Dinos (player) vs Red Dinos (AI). First to 5 goals wins.

Zelime Elibol officiates every match, dressed in full 80s glory: big blonde hair, hot pink headband, neon pink off-shoulder top, teal leggings, leg warmers, and wrist sweatbands. She follows the play on ice and raises her arm to signal goals. It's her 50th birthday!

This game was built iteratively through a conversation with Claude (Anthropic's AI assistant, model claude-opus-4-6) in March 2026. The user provided a series of natural-language instructions, and Claude generated all the code.

1. "Can you make a fortnite character?"

   • Initial request. Claude created a single-file HTML5 Canvas interactive Fortnite-style character with movement, emotes, inventory, and a HUD. Top-down perspective wasn't specified — the first version was a side-view character.

2. "Can you instead make a simple 80s retro style hockey game, where all the roles in the team are different dinosaurs?"

   • Complete pivot from Fortnite to a retro hockey game. Claude designed:
     • A top-down rink rendered at 384x240 pixels (low-res for retro feel), scaled up with image-rendering: pixelated
     • 5 dinosaur species mapped to 5 hockey positions
     • Simple AI for both teammates and opponents
     • Puck physics with ice friction, wall bouncing, and goal detection
     • Retro sound effects via Web Audio API (square/sine wave beeps)
     • CRT scanline overlay and screen shake effects
     • Game state machine: TITLE → FACEOFF → PLAY → GOAL → WIN

3. "Have the referee be Zelime Elibol (an actual person). It's her 50th birthday today. Have Zelime dressed in classic 80's clothing."

   • Added Zelime as an on-ice referee character with:
     • Pixel-art sprite in 80s outfit (hot pink top, teal leggings, leg warmers, headband, big hair, shoulder pads, sweatbands, hoop earrings)
     • AI that follows the play, offset to the side of the puck
     • Arm-raise animation when goals are scored
     • Birthday references throughout (title screen, ticker, win screen)
     • Birthday jingle sound effect on game start

4. "Some improvements: Slow the pace of the game down. Improve resolution and better graphics. Make Zelime blonde."

   • Major visual overhaul:
     • Resolution doubled from 384x240 to 768x480
     • All sprites redrawn at 2x size with more detail (shading, belly colors, teeth, pupils)
     • Rink upgraded: gradient ice, ice scratch textures, 3D board edges, goal posts, crowd in stands
     • Zelime's hair changed from dark brown (#2a1506) to golden blonde (#e8c44a) with highlights
     • Zelime's sprite made larger with more visible details (earrings, shoe detail, etc.)
   • Gameplay slowed:
     • Player acceleration reduced from 0.22 to 0.14
     • AI acceleration reduced from 0.15 to 0.08
     • Friction increased for more deceleration
   • Added ice spray particles when skating and on body checks

5. "More improvements: The happy birthday zelime text overlaps with the period time ticker. Make the selected player indicator more obvious. Spend a bit of time improving the dinosaurs. Add instructions on how to steal the puck, and pass the puck to teammates, and shoot the puck in a particular direction."

   • HUD fix: Moved the birthday ticker from the scoreboard area to the bottom of the screen
   • Selection indicator completely redesigned: pulsing glow rings, bouncing double-chevron above player, direction arrow, dark background behind name label
   • Dinosaur sprites improved across all 5 species:
     • T-Rex: dorsal ridge, body spots, nostril, more teeth, brow ridge, toed feet
     • Raptor: body stripes, proto-feather tufts, fiercer yellow eye, curved sickle claws
     • Pterodactyl: wing finger bones, furry body texture, taller dramatic crest, colored beak tip
     • Triceratops: scalloped frill with spots, beak, more prominent horns, body spots
     • Ankylosaurus: multiple rows of armor plates, side spikes, beak, head horn nubs
   • New gameplay mechanics:
     • Directional shooting: Hold arrow keys + press SPACE to shoot in any direction
     • Passing: Press SPACE with no arrows held to pass to nearest teammate
     • Stealing: Press SPACE near an opponent who has the puck for a body check
   • Controls text updated everywhere (info bar, title screen, HUD)

6. "Take inspiration from early Atari games on the controls."

   • Simplified to Atari-style one-button design: SPACE is context-sensitive
     • With puck + arrows = directional shot
     • With puck + no arrows = pass
     • Without puck + near opponent = steal
   • Z remains as a secondary player-switch button

7. "Also, on the intro page, avoid overlapping text."

   • Title screen layout redesigned:
     • Zelime moved to the left side at reduced scale (1.4x instead of 1.8x)
     • Birthday text positioned to the right, separate from Zelime's sprite
     • Dino lineups pushed down with more vertical spacing
     • Controls section given its own bordered box with clear two-column layout
     • All text items spaced to avoid any overlap

• Single HTML file — no dependencies, no build step, no frameworks
• Dual-canvas rendering — game drawn at 768x480 on an offscreen canvas, then scaled up to display canvas with image-rendering: pixelated for the retro chunky pixel look
• Game loop — requestAnimationFrame driving update() → draw() at 60fps
• State machine — TITLE / FACEOFF / PLAY / GOAL / WIN states with timers
• Physics — velocity + friction model for players and puck; wall collision with bounce; goal detection through open goal areas
• AI — role-based behavior: goalies track puck Y, closest non-goalie chases loose pucks, puck carriers shoot when in range, defenders fall back, attackers get open
• Audio — Web Audio API oscillators generating retro beeps (square/sine/sawtooth waves)
• Sprites — all drawn procedurally with fillRect calls (no image assets), giving an authentic pixel-art look at the low game resolution