This is the only challenge map that features Harley Quinn as the default character. It's also the only challenge map to have a DLC character from another DLC to be the default character.
Psychiatricks is a play on the word psychiatrist, the profession Harleen held at Arkham Asylum.
The map features Snowfall. The map used to have a glitch where it both rained and snowed at the same time, lowering the visibility. It triggered In From the ColdSide Mission was not completed in story mode.