Well, it's not worse as the title might suspect but actually id software seemed to have rushed the releases of Doom and Doom 2 in the early 90's. But the community doesn't forget nor do they forgive. A few members from the Doomworld community started a small project called the Doom 2 Minor Sprite Fixing Project which isn't that minor anymore being in progress for 4 years now. So what's the deal with it? Next to little problems like missing or transparent pixels on sprites and textures, people also started to improve the offsets for monsters (one famous example is the dancing Michael-Jackson revenant) and simply mirroring zombie sprites making them swap their weapons from one side to the other. A lot of things have already been resolved and this project is a "autoload" in my eyes if you play regular Doom. Take a look and give it a shot - or simply play it the way it was meant to look.