Luigi is one half of a team of Super Bros who have made video game history time and time again, and yet everywhere he goes people say "Luigi who?" because Mario has stolen his time in the spotlight.
His permanent number two status has made Luigi feel like an unappreciated guest in Mario's games, and even though Luigi has starred in a few of his own games they didn't sell as well as any game with Mario in it.
So Luigi has become a violent and greedy sociopath, and he will stop at nothing to make Mario pay for overshadowing him.
This video by Looper recounts Luigi's terrible actions and shows why he'll never be a hero like his bro Mario. Poor Luigi never stood a chance...
-Via Geeks Are Sexy