10 Video Game Bosses That React To You Being A Jerk

It's safe to say there's no character that calls you out for misbehaving like Sans from Undertale. Toby Fox's notoriously nutty turn-based title has three main endings or "routes," depending on the actions of the protagonist, Frisk. 

Unlike most RPGs, you can spare your opponents after they're defeated. Showing mercy to all enemies will set you on the Pacifist Route. If you refuse to kill a few enemies, you'll be locked into the Neutral Route.

But by choosing to murder every single enemy, sub-boss, and boss in the game, you'll unlock the Genocidal Route, where you must face Sans. The mischievous skeleton is a nightmare to fight, since his attacks are relentless, devastating, and un-telegraphed. Eight years after Undertale's release, Sans is still considered one of the most infuriating video game bosses ever.

However, you don't have the right to get frustrated with this battle. After all, Sans only challenged you because you went out of your way to act like a genocidal maniac.

If you spared one single enemy, this borderline impossible battle would be bypassed. As such, you only have yourself to blame when Sans shows you a bad time.