Okay, I understand. Here’s the revised version, maintaining the HTML structure and formatting, while substituting synonyms and rephrasing sentences:
A throng of animated corpses materialized, consuming all within their grasp; it is essential that you obliterate them. To spring, depress the ‘Z’ button; to discharge a projectile, push ‘X’; conversely, employ the upward-pointing directional key on your keyboard to ascend, and the Space bar to launch a missile.
To navigate, operate the display’s controls, or, on your keyboard, manipulate the upward-pointing directional key in conjunction with the Space bar.
