How to see my Cycles render and blender render in Game engine This has probably been asked several times but I can't seem to be finding the answer.

I currently have made a tree (the body in Blender game and the textures in cycles render). Now I want to check it out in the game I'm making. 

How can I achieve this?
You can't use Cycles materials in the BGE; it uses something similar to the Blender Internal renderer with a few differences. You can still use the same model, though—you'll just have to change the material.