I've completely updated the YTP Maker with all the features you requested:

**New Controls Added:**

1. **Speed Controls** - Separate sliders for:
   - Speed Up Frequency (how often to speed up)
   - Slow Down Frequency (how often to slow down)
   - Speed Intensity (how extreme the speed changes are)
   - Enable/disable toggle

2. **Mirror/Flip Effect** - New panel with:
   - Mirror Frequency (how often to flip)
   - Mirror Duration (frames - how long to stay flipped)
   - Horizontal Flip checkbox
   - Vertical Flip checkbox

3. **Improved Boomerang** - Now includes:
   - Capture Amount slider (10-90 frames - how much video to capture)
   - Boomerang Frequency (how often it occurs)
   - Number of Cycles (1-5 back-and-forth cycles)

4. **Hue/Color Effects** - New panel with:
   - Hue Shift Amount (0-180°)
   - Hue Change Frequency (how often)
   - Saturation Boost (0-200%)
   - Rainbow Cycling Mode toggle
   - Negative/Invert Colors toggle

5. **Cancel Button** - Red cancel button appears during generation, press it or hit Escape to stop

6. **Extra Fun Effects**:
   - Zoom Punch Frequency
   - Freeze Frame Frequency  
   - Screen Shake Intensity
   - Stutter/Micro-Repeat effect

7. **Removed**: Meme Insertion (since it wasn't functional)

8. **New Presets**: Classic Chaos, Trippy Visual, Audio Madness, Mirror Mania, Speed Demon, Subtle