The doctor's chair incorporates some of the accessories from the recent Prince of Persia sets.
Other mentionables include the use of Agents villain Break Jaw in the role of I-GOR, and what appears to be a BrickTW cape on the good doctor.
As always it wouldn't be a Karf creation without an healthy injection of humor directly into the brain stem...
"...THOTH! THOTH!...I thought it said TOOTH...wondered why the dental chair looked so odddnnNNNOOO!!!..." 