I received a Raspberry Pi 2 for Christmas. I performed these steps:
1. I installed retropie-v3.3.1-rpi2.img
2. I expanded it to use the entire space of the 32GB micro sd card
3. I was able to get roms transfered using a usb flash drive
4. I tried selecting HDMI for the audio but no emulators have sound.
5. I want to follow these steps but I can’t figure out how to get to the terminal: https://www.reddit.com/r/RetroPie/comments/3evgyi/retropie_30_no_sound/