Here is the full list of all 8 Mountain Mind - Headbangers VR achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Complete the song Tears In Rain
Complete the song Asteroid Blues
Complete the song Xardoz.
Complete the song Goddess Of Time
Complete the song Palm Desert '87
Enter the Credits
Figured out controller-free menus
You're playing a game about stoner rock.