Is Annie Psychotic?

She seems to have a very cheery attitude towards violence.

regarding mortal combat: "YOU WANNA PLAY TOO? IT'LL BE FUN"

When people start shooting and cutting at each other. "I WANT A TURN!"

(when summoning a giant demonic bear to burn people down)

"YAY! TIBBERS!"

Is very excited at shooting at helpless minions. When someone proves to be a bit of a challenge...

(threatens) "Don't Make Me Hurt You."