Finished porting the Instant Hatch code for Black 2:
521812D0 46C04718
521822D0 D30042B0
121812D2 0000E000
12182314 000046C0
D2000000 00000000
I'd love some help figuring out the Instant Egg code. I'm having trouble with it because as far as I could tell, the values belonging to those addresses weren't changing at all when I was testing it in White 2 when in fact the code worked.