MAME problems

[Bowzer Mike]

Was having problems getting games to load with MAME so I changed the emulator and they worked but no save states and some games just freeze the system so I have to unplug it, Is this normal for MAME to be kinda iffy when it comes to roms? Any other system works perfect.

[voljega]

Please read documentation : https://github.com/recalbox/recalbox-os/wiki/Easy-Arcade-on-Recalbox-(EN)