Something is amiss in the outpost....

[OreoTheRabbit]

I do have one itty-bitty question
When I input a sequence and hit 'Enter' sometimes one or more dashes appears under the letters. What does this mean?
Is this to indicate a sort of progress that I might be getting it close to being right?

It means one of the letters is in the right place. It doesn't have to be the one it's under, same with 1's and 0's.

For example, if you got the code AbCa, and you typed CABa, you'd get _ 1 1 0, since a is in the right place, C and A are the correct letters but in the wrong place, and B is not in the code.

Feedback order always goes _'s, 1's, then 0's.