Are there any games where you play the antagonist of an established game?
For example, is there version of Donkey Kong where you throw barrels at Mario?
@Edent it's not official DLC, but in Downfall (Slay The Spire) you play as the antagonists. Here's a list close to what you're asking. Surprisingly few games to what you describe... https://tvtropes.org/pmwiki/pmwiki.php/VillainProtagonist/VideoGames