Hey, I was wondering, is there a tutorial out there to made a 2d game like plants Vs. zombies or something? and if so were can I find it? Im using Unity Indie.
You could use GUI.Box or -even better- Graphics.DrawTexture but the latter is available only in the Pro version.
You can create your sprites in 2D and place them as textures in materials onto 3D planes in Unity (the materials can be animated if you need). You can then restrict the 3D planes to a specific z or x value then move them as needed.
I believe the Animation API example has some code that shows how to animate materials. http://unity3d.com/support/resources/example-projects/animationapi
There are actually several ways of doing 2D, including using 3D planes / boxes in your scene, the GUI class, or sprite manager systems.
An overview of these methods and their pros and cons can be found here: