When a badass villain is introduced in a video game, your first thoughts are almost always about when you're potentially going to fight them in the story, and wondering how cool you'll look when you dramatically slice them in half and end their life.
Your first thoughts are often entirely wrong though, because plenty of powerful and menacing villains actually have pretty stupid deaths. This can either be because the method of their demise is silly - like being savaged by penguins or killed by indigestion - or because the logic behind it is weird, or massively flawed.
This is especially common when a borderline untouchable boss does something that lets you defeat them, when otherwise you wouldn't have had a chance in hell at managing to do so much as delicately graze their cheek.
On the plus side, both methods remind us of an important fact that's true in both life and video games: you can be as powerful as possible, but that won't stop you from possibly kicking the bucket in a way that makes you look like a massive twerp.