[runlevel1]

It was flash, so here are a couple videos of what it looked like:

2Advanced v2 (2001): https://www.youtube.com/watch?v=IWkNkQoQY_8

2Advanced v4 (2003): https://www.youtube.com/watch?v=VM_JNqFCvyo

For context on the time period, most people were on Windows 98 and IE6 was brand spanking new. This was truly mind blowing stuff.