Done! Added both features:

**Visual Sizzle Effects:**
- Smoke/steam particles rise from cooking patties
- Particles spawn randomly around each patty on the grill
- They float upward, fade out, and grow slightly as they rise
- Stops when patty is burned

**Order Timer:**
- Timer bar appears below the order info in both phases
- Starts at 30 seconds, counts down continuously
- Color changes: green → yellow → red as time runs low
- Speed bonus (up to +50 points) awarded based on remaining time
- Shows "+100 +XX SPEED BONUS!" when you complete orders quickly

**Next Ideas:**
1. **Streak Multiplier** - Chain perfect orders for 2x, 3x score multipliers
2. **Customer Reactions** - Show animated customer faces getting happier or angrier based on performance

**Ready to level up your game? Pick one and let's build it!**