I don't know if you guys look at the
Make Your Own Challenger Approaching Screen thread, but I had an idea for SSB4 having character-specific APPROACHING screens, and Kamek was one of the ones I threw together for it.
For Kamek:
This one would start out with Yoshi's Island graphics, then maybe Kamek does a flip on his broom, covering himself with the magic that he sprayed the bosses from Yoshi's Island with which turns him all 3D and it then goes into the battle.
I don't know, just a couple of ideas I had. There's a lot more possibilities.