Editing Openai/694f5245-1110-800b-b182-7c2accd50046 (section)

=== Assistant: 好耶老闆😈🔥 這三句一塞進去，整個味道就對了：硬派傭兵 × 廢土禁忌科技 × 64bit像素。 ===
好耶老闆😈🔥 這三句一塞進去，整個味道就對了：硬派傭兵 × 廢土禁忌科技 × 64bit像素。
我直接把「Seed Core」幫你填滿，變成一份你可以原封不動貼去 GEMINI 的種子（偏工程規格，但保留中二燃點）🧩

==== App Type: Single-page HTML game (no backend) ====
Tech: HTML + CSS + JavaScript (Canvas preferred)
Goal: Build a playable horizontal side-scroller “Mech Mercenary” MVP.

===== You are a corporate-hired mech mercenary scavenging forbidden technology in a post-apocalyptic wasteland—survive missions, extract relics, get paid, upgrade, repeat. =====

===== - Tone: Hard-boiled, pragmatic, mercenary, low-talk high-action =====
* World: Wasteland ruins, dead factories, buried labs
* Motif: “Forbidden tech” risk/reward (powerful loot, dangerous enemies)

===== - Accept a contract → deploy to a mission stage → fight & survive → collect relics/credits → return to hangar → upgrade mech → next contract. =====

===== - Move: A/D or ←/→ =====
* Jump: W or Space
* Dash: Shift (consumes Energy)
* Aim: mouse (optional; if too complex, use fixed 8-direction keyboard aim)
* Shoot: Left click (or J)
* Weapon swap: Q/E
* Interact / pickup: F

===== - Stats: HP / Armor / Energy - Armor reduces incoming damage; when Armor breaks, HP takes full damage. - Energy is used for Dash and some weapons; regenerates slowly. =====
* Enemies: 3 types 1. Rusher (fast melee) 2. Shooter (mid-range) 3. Heavy (slow, high armor)
* Weapons: 3 types 1. Rifle (stable DPS) 2. Shotgun (close burst) 3. Missile (slow fire, high damage, splash)
* Level: 1 stage + 1 boss - Stage: ruined industrial zone (platforms + simple hazards) - Boss: “Corp Hunter Unit” guarding a relic container
* Economy: - Credits gained from kills + extracted relic(s) - Between missions: upgrade screen

===== - Damage + =====
* Armor max +
* Energy regen +
* Dash cooldown -
* Optional: weapon-specific upgrade (e.g., missile blast radius +)

===== - Visual Style: Retro 2000s / 64-bit pixel look - Visible chunky pixels, crisp edges, clear outlines - No modern smooth gradients; keep shapes readable =====
* HUD: Pixel-style minimalist - HP bar, Armor bar, Energy bar, Credits, Weapon icon/name, simple ammo indicator
* Effects: small pixel hit sparks + screen shake (subtle) - No glow-heavy VFX, no particle overload.

===== Must have (v0.1): =====
* Playable stage loop (start → play → win/lose → upgrade → replay)
* Player movement + jump + dash + shooting + weapon swap
* 3 enemies + boss
* Upgrade screen
* Restart on death

Must NOT have (v0.1):
* Login/account, cloud save, database
* Procedural generation
* Complex physics (ragdoll, real collisions beyond basic AABB)
* Cutscenes / long dialogues
* Massive UI panels or inventory systems

===== - Return one complete HTML file (all CSS/JS inside) that runs by opening locally. =====
* Code structure: Game, Player, Enemy, Boss, UI, Level (simple classes or modules).
* Keep everything readable and easy to iterate.
* Add brief instructions and controls at the top of the HTML.
* Performance: stable on typical laptop browsers.

===== - Within 1 minute, user can start, complete the stage, see boss, win/lose, go to upgrade screen, and replay with noticeable upgrade effect. =====

==== Change request: (what to change) ====
Do not change: (what must stay)
Acceptance criteria: (what counts as done)

==== 你可以在種子最後再補一行，逼它不要寫太多劇情、但要有味道： ====

: 

如果你想，我下一步可以幫你把「第一關」做成更具體的關卡規格（平台配置、敵人刷點節奏、Boss三段行為），一樣整理成可貼給 GEMINI 的種子擴充包 😈🛠️