Just doing the separate parts, 240's too crazy for me.
Hmm, there's no real easy way to explain it. Like in fire red, it goes from grayscale Charizard to color, and then the green background slides from left to right, and then the red border slides from right to left. I removed the Charizard completely but when I inserted my background and check it in-game, the background flashes for a brief second and then swipes from the right to the left. D: