Well, it turns out that it was indeed the Konami shoot-em-up from 1986, and it also turns out that I am indeed rubbish at shoot-em-ups. No idea how many stages this one has, but I managed to get to stage 3, which felt pretty impressive for me! Your character is a knight rather than some kind of spaceship (hence the title), but otherwise this is very standard shoot-em-up fare - enemies that zoom down the screen at you firing like crazy, power-ups that you can grab, the usual. One slight difference was that in this game there are obstructions on the playing field that you can shoot. These are actual obstructions that will push you off the bottom of the screen and kill you if you're not careful. Most of the time these contain bonus points when destroyed, but sometimes they will contain smart bombs or time-stops, and other times they will contain solid walls that you can't destroy. In later levels, these walls become more common and the designers use them as a level feature, designing mazes around them where you have to destroy the blocks in order to find a way through. I have to admit, it does feel a little bit obnoxious when you've got hundreds of enemies swarming around also firing at you, but these games were never made to be easy! I don't think I'll be able to get much further in it, so that's enough for me. Onwards!
Next up on the randometer is...Crown! Absolutely never heard of it. Should be fun.