Changing Atari 2600 difficulty settings

[mbison]

Hi,

I'm using v4.5.1 on a RPi 1 B model and I'm looking for some help in changing the atari 2600 difficulty settings. In the game Asteroids, the UFOs appear only on the hard difficulty setting so I'd like to find a way to change the difficulty settings if possible.

I read through the Atari 2600 RetroPie Docs and I have some questions.

1. Which emulator comes with RetroPie - Stella or lr-stella?
2. lr-stella utilises Retroarch configurations and the image in the docs shows that the Atari difficulty switches can be changed. If lr-stella is not the emulator installed by default, how can I install it?
   3)Which is the best way to change the difficulty settings? Autoconfigurations, Hardcoded configurations or Core input remapping?

Thanks in advance.

[fdr4prez]

lr-stella is installed by default

But i've never used it, so I can't help further

[MajorDangerNine]

@mbison You change it by pressing a button. I forget what the default is, but you can redefine them using the RetroArch menu.

[simpleethat]

@mbison have you looked at this page of the docs? There's a graphic for the controller and the switches on the console itself.

I don't really play around with the 2600 but it's a bigger push in the right direction.