Worst Levels Ever # 1

Unfortunately, although there are lots of fantastic levels and stages in video games, there are also a fair few awful ones, and in this video, I take a look at one of my most hated of all time.
I will more likely pick bad levels from games that I otherwise enjoy. These are the ones that stick out the most and can bring good games down.
Please no suggestions/requests for any possible future episodes. There are two reasons why I ask this:
1. This video is all a matter of opinion. What might be my least favourite level of all time might be your most loved and vice versa. I'm hardly going to want to bash a level I love, am I?
2. I'm tired of getting requests or suggestions, and in this case, there's an especially large pool of choices, because just about every game ever has stages, levels and maps.