Unless you tested it—at length—behind the scenes, I wouldn’t think anywhere on-screen in World 1-1 would come close to tripping up a modern game engine. Even the Nintendo barely lost its stuff in, 8-1, where you had 2 bullet bill launchers, 2 Goombas (or Busy Beetles) and a Koopa Paratroopa hopping around. Unless you meant something else entirely, and I didn’t catch on lol.