How to rotate charater when pressing left or right arrow key?

I make a 3d platformer like a mario.
How to rotate backward character with arrow keys?

Hey there,

the question is a bit vague. Do you want to know how to let the character move left and right at all or only how to rotate him into the direction he runs?

For the second thing there is a bool in the CharacterMovement Component on your Character. This bool is called “Orient Rotation To Movement”. If this is not already set to true you could try that (:

http://puu.sh/mFfMR/db3aaca800.png