It's easy to forget these days, but Rockstar was once known for more than Red Dead Redemption and Grand Theft Auto. While GTA has been the studio's best-selling franchise for quite some time, more experimental projects like Manhunt and Bully allowed for greater risk-taking and growth, often showcasing the developers' boldest ideas. With the latter now turning eighteen, the absence of this ironically teen-focused series is particularly poignant.