please need help again!!!

[acidsnake20]

i downloads some roms from the net the marvel vs capcom are working but the metalslug 2 are not. can you help me. and the other roms that i download are not working please need help...

[Epsi]

Metal slug is NeoGeo game, meaning you need its bios! Check if you have the neogeo.zip file... think its 256 kb... not sure

[acidsnake20]

i have a neogeo bios it's 5kb, there are other neogeo bios?

[alcoatjez]

For which emulator do you need this?