First of all, let me say that this is the best example of fusion sprites I've ever seen for Pokemon. I actually have been playing it the past week to get a shiny living-dex. I did have a question though.
I caught a Mega Evolved Cragaskhan in the Safari Zone, and it stayed mega evolved, and unlocked the Mega variant's Dex entry. How do you unlock the other Mega form dex entries? I have mega evolved each of ones capable of it, but I only have the Cragaskhan unlocked. Thanks for your time! And all of your hard work on the game.
Also, side note, I managed to catch an un-fused Raikou. I assume that still hasn't been changed from the base game.