Does WWE '12 on Wii Have Mini-Trons?

No. The mini-tron entrance videos (small screens flanking the stage) appear only on the PlayStation 3 and Xbox 360 versions. The Wii version uses a simplified presentation engine due to hardware limits (no hard drive, weaker GPU, 480p max).

Other Wii omissions: fewer crowd animations, lower-res textures, no Highlight Reel mode, reduced create-an-entrance options.