Oh wow, Perfect Dark Zero had much higher metacritic scores than I expected.
I thought it would literally be a 50 - I didn't think it was a good game, I didn't think it was a bad one either - it was the most middle-of-the-road competent shooter I had played in years. I remember it getting largely hammered at release though, I suspect that had more to do with having Perfect Dark in the title and not meeting unreasonably high expectations than actually being a poor game though.
That ending song about a sex act was really weird though. The song was an absolute banger but the lyrics just had little to no context to them.