We don't support 3rd party images, especially the ones loaded with ROMs. Please install the RetroPie image from retropie.org.uk/download and report back if you have the same issue with it.

@mitu Thank you, I'll try this out and get back to the community.

it is my understanding that lr_stalla doesn't support paddles, so I don't know how well it handles paddle games with more than 2 players.

try to install the stand-alone stella

You can also get the 2600-dapter D9 and use real Atari paddles

@whitesimo honestly you should get the romsets for lr-mame2003 or advmame and use those.

@edm203 No, I added my own. There seems to be an issue with emulationstation getting the correct name too.

Nevermind. Found it. Under Retroarch, it's quick menu -> options, then last option which is max players. Change from 2 to 4.

Thanks Alex! I just did that and it worked!