The term "boss fight" is something that most people have probably heard of at some point or another. In general, boss fights are something that happens while playing video games.

At some point in the game, there will come a time to battle and defeat an enemy or face a challenge that is much greater in scale and strength than the ones before it. Boss battles take time to prepare for and may take multiple attempts to beat. Boss fights exist in real life too though, but they are less often seen, and way more intimidating.

A boss can be just about anything, but greater in power and strength, and perhaps with some special power. They aren't something anyone wants to come face to face with on a normal day, they are truly mad. For examples of these sorts of real-life bosses, Reddit's subreddit titled /r/Bossfight shares and features many of these very real, very intimidating bosses found all over the world. Here are just 25 of them that will shiver anyone's timbers.