How to implement AI for paper2D Enemies?

We are trying to make a Beat 'em up type game like Double Dragon series. While working on enemies AI we got stuck.

The enemy is chasing the character but the enemy sprite is rotating while chasing, the enemy is supposed to follow around the character in X and Y axis facing the camera like the main Character ( Monkey in Front ). Below attachment shows the problem we are facing.
Need Help!
Thanks,
Hybreed!

40039-ue4editor+2015-04-24+15-31-47-34.gif

How did you make your AI follow you on Y?

Goto details panel of the actor on the right scroll down or search for „lock on x,y or z plane“ enable your desired plane lock and test

could u screenshot the blpuprint that makes the enemy chase you i have been tring to do something like this for the last 6 hours