Issue in moving up and down

[SabikaBatool]

Hi, I am new to Quintus. I used Tiled to create background and collision layer. I've succeeded to make player collide, using tmx file, but it just move left and right not up and down. I am developing pac-man like game. I've searched a lot but no success.
Guide me how to do this. I am waiting for your reply eagerly.