Everything about Rusk

Rusk is the second character to have different-coloured limbs, with the first being Lychor and Lychor again.

Rusk is going insane by the second because of Macy.

Rusk loves Lychor because when she's about to lose it and start fighting like she's never had before, she listens to the 2017 version of the Elmo's World opening, often singing along with Elmo.

Rusk is debatably like Pomni

Rusk has truly maxed out her dexterity, able to perform several tricks, from yo-yos to butterfly knives. She's also capable of killing the Spy from TF2

Rusk is scared of the following:
Macy
Dogs
Death stares
Puppets
Hell
Death sentences
The darkness
Musical Chairs
White Macarons
Moulding
Being stabbed by a fork or a knife
Forsaken, Die of Death, and any other asymmetrical horror game
Dandy's World (For several reasons. Some don't make sense at all. She could talk about the whole game negatively in 18 languages for months straight.)
And, of course, Undertale (Because of Flowey.)

Rusk is not mentally ill. Rusk gets uncomfortable around Macy because they've met before, and she once took her head off and ate her sweet red Macaron head. (Which is why she's covering it in this image.) She tries everything to tell Tammy that she isn't from an asylum, but every attempt makes her angrier by the second.