I have one fight in one of my unreleased maps, where there is a horde of Pinkies coming your way while the player is armed with the RL, so they need to be killed quickly before you get pinned in. At the same time, there are Arachnotrons on your side, but elevated above you, forcing a spiral pattern of movement while approaching and backing away from Pinkies, to make the plasma balls under/overshoot you.