BTW the pain in Axl's head I have an explanation for.
You see in the ending for X8 after X, Zero, and Axl had defeated Lumine, Axl walked over to a seemingly dead Lumine when suddenly Lumine's chest burst open and a tentacle came out of Lumine's torso and struck Axl in the crystal on his forehead shattering the crystal. Axl was rendered unconscious and a shard of Lumine's body was planted inside Axl's head.
The reason for the pain Axl is feeling is the shard also has a bit of Lumine's data, and as such Lumine's "ghost" is trying to take over Axl (which will be a slow process.) Axl will start being a bit more ruthless in combat as the independant arc for Axl goes on. Eventually Axl will end up figuring out the cause (and since the shard can't be removed without permanent damage to Axl's memories, and electronic brain) he will have to try and win his own body back. The result:
White Axl: (An official form from Mega Man X8 that is unlocked by beating Lumine as Axl) though it isn't exactly canon as it has no effect on the plot and is not referenced in Command Mission. In this RP it will be part of Axl's story.
Once Axl regains complete control over his body from Lumine Axl's body becomes a permanent white, similar to Lumine's body colors.
With this new permanent form Axl gains:
The ability to stay transformed indefinitely, as well as a more "perfect" transformation (he will be able to copy the abilities of who he is transformed into even better than he can currently, though not completely.)
and flight.
One thing... who is going to help Axl regain control over his body after Lumine takes over?