I think Facebook is reviewing ALL old apps at the moment in the wake of the CA data scandal. I have an old test app I haven't used for 8 years and I got a note from Facebook about it. So I wonder if there's a huge backlog.
Everyone who learnt to code in the 80s made a version of the snake game. I did one in ZX Basic on my old Spectrum as a bored 9yo using ASCII number 8s as my snake's body
I wasn't smart enough for Wall (we still called it Breakout in my day and played it with paddle controllers). But I was so excited when I got my snake to move with joystick control