Camera for 2.5D sidescroller game?

So i want to create a 2.5D sidescroller game, where you move along the x/y axis, but also have a limited movement in the Z axis.I want the characters to be simple spritesheets and the enviroment to be 3D objects.

My problem is the camera. it does not feel right using perspective or orthogonal. Movement in the Z axis dosent feel right using either view. Its hard to see where you are in the Z using 2D view, and in 3D view it doesnt feel like a 2D game anymore.

Is there a special camera technique for the solution im looking for?
Is there a way to mix Perspective and ortogonal camera?
Examples of similiar 2.5D games, where you can actully walk in the Z?
34812-asd.jpg

Depends because this looks like you’re trying to jump to something behind the player so if you attached the camera to the player to follow him if you’re making it so he jumps onto the block at the back the camera will look like he is jumping 3D but it will be 2D.