How can we get Bowser at the end of the levels?

Just what the post says. If I put Bowser in a level, If it doesn't black screen, he just stands there. The easiest way to have something would be to replace the FireBro. sprites with a scaled down, or from scratch bowser sprites. I can't find any info on how to edit the enemy sprites. Any Ideas.

Sadly, they are not sprites, but full 3D models. Try doing this:

• Go here and download BRRES Viewer, SZS Modifier, and Wiiscrubber.
  
• Using Wiiscrubber, open NSMBW ISO and extract Object--> bros.arc & koopa.arc
  
  
• Use SZS modifier to open bros.arc
  
• Note: You'll have to change "All compatible files" to "All files" when trying to open it, or it won't show up
  
• Check out the 3D model, the textures, etc.
  
  
• When you are done, open bros. arc in BRRES Viewer.
  
• Double clicking something in 3DModels shows a nice preview of the model
  
• Double clicking something in AnmChr shows the animation (If the right model is open).

Hope this helps some. If you get stuck on anything, let me know!

Oh, and koopa.arc is Bowser.