Ridley (Metroid)
Ridley's status within the ranks of the Space Pirates is unclear, with some sources stating that he is the leader of the entire Space Pirate race, whereas others portray him as simply the Pirates' military commander or even a mere enforcer within the Pirate military ranks, subservient to Mother Brain or Space Pirate High Command. Regardless, he is consistently depicted as a ruthless and cunning tactician who never passes up an opportunity to bring his considerable ferocity to bear on the battlefield, opting to overwhelm his opponents with an unwavering onslaught of attacks from his mouth, claws, and tail. He is also incredibly cruel, actively taking pleasure in the killing and torment of others; at one point in the official manga he taunts Samus by claiming he may have devoured her mother's corpse after killing her, and a Space Pirate log entry in "Metroid Prime" notes that being the mainstay of the Pirate security force is "a job he will certainly relish."
Dr. Wily
"Computerworld" named Wily as one of gaming's "baddest villains", praising his persistence despite his failure at the conclusion of each "Mega Man" game. 1UP.com editor Jeremy Parish shared the sentiment, stating "the fact that his schemes ultimately boil down to creating eight themed robots with a fatal weakness to one another's powers casts his 'genius' descriptor into doubt. Still, you have to admire his persistence." GameDaily named him one of their favorite older characters in video games and one of the "Top 25 Evil Masterminds of All Time", ranking him second on their list while stating "using good robots to do bad things is sheer genius." They additionally cited his rivalry with Mega Man as one of the ten greatest in video games, describing it as one "still going strong to this day." In a later article, they listed the "evil mastermind" as one of their top 25 video game archetypes, using Wily as an example. IGN listed him as the 13th Best Video Game Villain, calling him one of the most "hopelessly persistent" video game villains.