hmm,, sorry for lack of my English..
I thought emulator running on MPx player.
other formats -> rkp format player(?)
Maybe it's hard to make it.. but once made, we can play all kinds of game made for other formats in MPx players! if it's compatible..
like *.gba files and mame and so on.
Then this will save times making other games.
The emulator for rkp is also awesome
Anyway thanks for replys.