pretty simple for the most part. You will most likely need to setup multiple variables. Or you can test for if the player is moving, and collides with wall object (if you have certain types of walls that they should bounce off of then use families). Then:
On Collision with Wall
If Wall to Left > Set Vector X + 100
Set Vector Y - 100
Play Animation BounceOff
If Wall to Right > Set Vector X -100
Set Vector Y - 100
Play Animation BounceOff
You may also want to check what direction the player is moving if they have the option to run backwards, etc... Setting Vector X moves the player to the left or right depending on + or -, Setting the Vector Y moves the player up or down depending on the + or -.
That should get you started...