Castlevania IV (Beta/Unfinished)

A preview commercial for Super Castlevania IV, then titled simply Castlevania IV, shows many notable differences.
 * The title screen/main menu is much simpler and has a strange watermark in the center.
 * Almost none of the level layouts shown are the same as the final.
 * The outdoor sections seem to have much browner, autumnal palettes, though this could be due to low-quality recordings.
 * The boss shown early on is entirely absent from the final game.
 * A level select is shown. There is a level select in the final, but it cannot be accessed without cheating and it looks completely different from the one shown.
 * The opening segment appears to have a long string of breakable blocks before the drawbridge, while in the final there are just 2 blocks between the solid ground at the beginning and the drawbridge.
 * The barn segment has bizarre enemies that appear to be possessed suits of armor.
 * The skeleton horse boss's neck moves all around instead of only moving in front of the body, creating a somewhat comical appearance.
 * The 8-directional whipping is either absent or the player wasn't aware of it during recording, as Simon only whips forward in the video.
 * The subweapons also seem to be absent.