See kids, back in the late 80s and early 90s, there was a wave of run-and-gun gauntlet games where your goal was just to survive as long as possible while holding your finger tightly down on the “Fire” button. Your mission was to clear the screen of murderous monsters, foot soldiers with Uzis, giant tanks and helicopters, and sometimes HR Giger Alien knockoffs. And then do it again, for they never stopped coming. You were always on edge, and couldn’t let your guard down for a second. The difficulty was nuts. It was great.