I do recall having performed the "King's Mate" before as well. However you could have finished the game much earlier. The more I play chess the more I focus on the objective: checkmate the king, and not bullying the opponent! This is because back in the novice years those that bully the opponent tend to get complacent and make mistakes, which are sometimes big enough to lose the game.
king's mate
I'm not familiar with "King's Mate" either, though seems a good exercise for a kid new to moving the pieces and learning winning combinations. The example shows an exessive mate in nine. The lesson here is to develop skills. In this example mate can be forced in two.

As showed,the point is not to mate in to, one could have give mate much earlier in the game as well with the strength of the pieces, but to place the king in the tron position where the mate ends. It's fun and one can make a mistake and draw the game by stale mate as well. I'm sorry to disappoint the serious chess players with this one.
I remembered that as a boy I use to show my superiority on opponents by mating them by the "Kings Mate". So I wondered if anyone can remember doing that lately. This is how it looks.
I hope that I am not the only one who did that to practice the