Emulator Problem: neogeo rom metal slug 3 file missing problem

Sir i have to play neogeo metalslug 3 (mslug3) in android emulator neo.emu

but when i play or load the game a message on screen popup like " file check for 256-sma.bin failed,Rom set not compatible "

sir please help me to solve this problem..

i have another problem for metal slug 4 & 5 like this file missing...


i m waiting for ur response..??


(sorry for bad english)

You are missing a rom. Use google or some other search provider to find it.