"Homicidal sidekicks rock. Homicidal robot sidekicks are maybe the best thing ever. "Knights of the Old Republic" is a pretty good game before you find the assassin droid known as HK-47, but it turns into a classic after his arrival.
Even the most sinless of Jedi main characters find themselves darkly considering taking the literal killing machine with them on missions just to see how he reacts to the walls of dialogue that are thrown your way. His constant desire to see you slaughter every single person you meet is like an irresistible Siren's call to the dark side. Why negotiate and stay good when you can hack apart everyone in your path and gain the ability to shoot lightning in the process?"