now "Pokemon Style" is impossible to achieve as i mentioned for many times now because it's hardcoded into the program. If you want your game to be pokemon style, go pokemon rom hacking, not RM2K.
Kecleon if you want 4 battle moves, change one of the option to "next page for more attacks" or something to allow 4 slots instead of 3. That will really improve your game.
As for Nintendo attacks, i am very sure that it is...
"IMPOSSIBLE"
RM2K is capable of better (or equal to RS graphic), invent your own. Plus players would like to see something new rather than repeats.