Help with enemies following the player!!!

AreaGames · October 2012

Hello, I am making a game and I came up with this problem. I created orange and cyan cubes.The orange cube is a player that moves around.And the cyan cube is the enemy. Cyan should follow the orange cube on y axis but little bit slower than player but still smoothly ,I tried constraining attribute but it didn't work because cyan cube followed the player exactly the same fast help!!!
Here is a video ( i am making the code only, so i didn't had a time to create textures)