Mario vs. Sonic

Wow, this has to be one of the most complicated pictures I've ever done. I love the thought of these guys meeting, fighting, maybe working together!

Here's each corresponding characters (I think I have an equal number for each video game.)

Mario-Sonic (obvious reasons)
Luigi-Tails and Knuckles
Peach-Amy
Daisy-Sally
Pauline-Cream
Rosette-Elise
Wario and Waluigi-Shadow
Captain Syrup-Rouge
DK-Chaos
Prince Peasley-Cosmo
Twink-Tikal
Bowser-Eggman
Bowser Jr.-Maria
Yoshi-Big
Toad-Chao
Mini Mario-Mecha Sonic
Shadow Queen-Snivley (don't know why)