Sonic Advance: Memory

In my effort to find objects, and possibly start locations for Sonic/characters, I've looked into memory.

Around $A00 in WRAM, things change when you jump.
Around $2510 in WRAM, things change when you bring up the insta-shield
Around $2580 in WRAM, things change for jumping as well as somersaulting.

Sonic's X location?(!): $03000408 (IRAM)
Sonic's Y location?(!): $03000418 (IRAM)

General object RAM, starts around $ 03001B30, in IRAM. Use to find obj positions.


currently: Sonicxy: 0025 0054

NOTE: I did a search for start positions based off of the ram variables. I found nothing in the rom...