Trouble playing multiplayer

I have two controllers hooked up and they both work because when I play super smash bros. On Nintendo 64 I can play versus but when I play my roms on NES it won’t even allow me to choose the 2 player option.

Can someone help me with this

This is a known RetroArch bug : the multitap is broken on both NES and SNES cores.

SNES work 2 players but NES continue with bug? i cant choose 2 players.