How do you rotate a 2.5d character so they face the Background?

Hi, I’m Student game Developer and I’m trying have the default sidescroller character face the background. the reason for this i’m doing a MegaMan-Klonoa style project with character have the ability to shoot and jump in background and foreground. I’m using the 3d sidescroller template and I tried to turning off the constrain to plain to see if it will give me the extra axis but it didn’t help. if anybody has an answer,please help. Much appreciated

here are link to get a idea what I’m going for:

[Megaman x example][1]

[Klonoa][2]

Use the ThirdPerson Template and put the Camera like the 3D sidescroller and have as many layers you want