The Lumpy Rig features

• IK FK arm switching
• IK feet space switching
• pupil dilation
• breathing chest control
• Hi rez toggle for faster interaction
• controls to reveal Bloody face and hands. (placement based on an image as a matte.  Can be customized.)
• control for setting subdivision level of the body to allow more of the displacement detail to show.  max-4.

Recommendations

• Link the "LUMPY Asset" collection into your scene and make a library override to avoid accidentally altering the original blend file.
• Do not animate "MSR_CTL".  This is best used for moving, rotating, scaling the entire character as needed for the scene.
• When animating, toggle off "Hi_Rez" on for faster interaction and playback.  (It will still render as high resolution version)