0x003C772A is used to check whether we are currently ingame (0 for no, 1 for yes)�. I found this value using the cheat search, and while it seems safe I am not entirely sure if it is safe (i.e. statically allocated and with correct time behaviour).
I currently use a script that simulates a key press in order to take periodic screenshots. It would be nice if there were a way to automate this in dolphin.
On the frame a character is hit, its percentage will show the previous damage, while the memory value contains the new damage. I have not yet found a workaround. There appear to be certain memory addresses that contain a percentage that is delayed by one frame, but these are dynamic and I do not know how to reliably access them. I have decided to leave this bug in for now, in hopes that it will not matter enough to affect convergence.