Giving another character Morph

The game engine uses only one counter for the morph timer. It is $1CF6 (RAM). If more than one character use the morph command, they will conflict over the use of the timer.

I consider difficult to implement multiple morph timers for multiple characters. It will require good hacking skills to modify the game engine. In my opinion, it isn't worth the effort. In comparison, it should be easier to rewrite the behavior of the morph command for something anew.

The morph duration is updated at the end of the battles, but it is hard coded with Terra's presence. It doesn't matter whoever has the morph command, only Terra can update the morph duration.