Pizza Man

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 a 2D side-scrolling endless runner game called "Pizza Sprint" with these exact specifications:

**Camera & Perspective:** Fixed side-view camera. The player character stays at a fixed horizontal position (about 115 pixels from the left edge) while the world scrolls from right to left.

**Player Avatar:** An orange capsule-shaped pizza delivery character ("Pizza Man") wearing a bright cyan/blue helmet with a dark visor, carrying a tan/beige pizza box. The character has a dark orange outline, simple black stick legs that animate in a running stride, and casts a subtle oval shadow beneath. When ducking (holding down), the character becomes horizontally stretched and lower to the ground with the helmet shifted forward.

**Setting & Background:** Gradient sky transitioning from cyan blue at the top to warm peachy-yellow at the horizon. White fluffy clouds scroll slowly in parallax. Rolling hills in alternating teal/turquoise shades scroll in the midground. The ground is bright green grass. A dark gray road with yellow dashed lane markings runs horizontally across the lower portion of the screen, scrolling to create motion.

**Core Mechanic:** Auto-runner where the player jumps (Space/Up Arrow/W or tap JUMP button) and ducks (Down Arrow/S or hold DUCK button). The goal is to reach a score of 999 by avoiding obstacles. Speed gradually increases as score climbs. Game accelerates from 390 to 600+ pixels per second based on score multiplied by challenge modifiers.

**Obstacles (4 types randomly spawned):**
1. **Spike** - Small red/pink triangular spike on the ground (35×38px) with a white highlight dot. Must jump over.
2. **Lamp** - Yellow hanging streetlamp from above (28×86px) with a glowing yellow bulb and soft yellow glow effect beneath. Must duck under.
3. **Car** - Low, wide blue vehicle (82×35px) with cyan windshield, black wheels, and yellow rear light. Requires precise jump timing. Must jump over.
4. **Bird** - Purple bird (48×30px) with animated flapping wings, yellow beak, black eye. Can spawn at two heights: ground-level (jump over) or high in the air (duck under). Birds have a 25% base spawn rate.

**Challenge System:** Before starting, players can select from a panel of challenge modifiers displayed as cards on the right side. Challenges can be stacked (multiple active simultaneously). Clicking an active yellow card deactivates it. "Normal Route" button clears all challenges. Available challenges:
- Birdmaggedon: Birds appear 90% more often (47.5% spawn rate)
- Pizza delivery!!!: 50% faster game speed (1.5× multiplier)
- Duck, jump, slide, roll.: Jump height reduced 20% (0.9× scale)
- Pizza Man on Hiatus.: 50% slower game speed (0.5× multiplier)
- Kachow.: Obstacles become 100% transparent until close to the player
- Speed on Wave.: 150% faster game speed (2.5× multiplier)

**HUD & UI:** 
- Score counter in top-right corner displaying three digits with leading zeros (e.g., "019", "999")
- Instructions in top-left: "Space/ /Tap Jump • ↓/Hold Duck" and "Reach 999 to deliver the pizza."
- Two large buttons at bottom: "DUCK" (left) and "JUMP" (right) with rounded green backgrounds and dark borders
- Challenge panel on right side shows challenge cards before game starts and after death

**Particle Effects:** White burst particles when jumping (from feet). Yellow/gold burst particles when successfully passing an obstacle. Red/pink explosion particles on collision with obstacle.

**Win Sequence:** At score 999, obstacles stop spawning. Player slides right to center-right of screen. A small house with orange walls, red triangular roof, and brown door appears. A homeowner character (blue shirt, peach-colored round head with simple black eyes/mouth) stands with waving arms. Speech bubble appears saying "Pizza delivered!" After 5 seconds, transitions to a credit roll.

**Credits Sequence:** Dark blue/black background. Yellow "PIZZA SPRINT" title at top. White text credits scroll upward listing roles (Game designer, Game tester, Obstacle wrangler, Pizza coordinator, Tiny bird trainer) all credited to "Archon". Ends with "Thanks for playing!" and "Press R to run again" at bottom.

**Collision & Fail State:** Pixel-perfect hitbox collision between player and obstacles. On hit, screen shakes, large red particle burst, and message displays "Delivery wiped out by a [obstacle type]!" with hint about whether to jump or duck. Challenge panel reappears. Press R, Space, or tap JUMP to restart.

**Art Style:** Flat, colorful cartoon graphics with thick black/dark outlines. Simple geometric shapes. Bright, cheerful color palette with high contrast. Clean UI with rounded rectangles and sans-serif fonts.

**Audio:** Jump sound effect plays on successful jump (digital phase jump sound).

**Controls:** 
- Space, Up Arrow, or W to jump
- Down Arrow or S to duck (must hold)
- R to restart after crash
- Touch: Tap JUMP button to jump, hold DUCK button to duck
- Clicking challenge cards toggles them on/off before/after runs