LEGO Marvel Super Heroes 2 cheat codes, used by pausing the game and selecting 'Extras,' allow players to unlock characters such as Ant-Man (BCR7QJ), Baby Groot (QG3VH9), and Giant-Man (GAVK9R). For comprehensive walkthroughs and 100% completion guides, resources include Steam Community and YouTube videos. For more on Lego gaming resources, explore Gaming Beasts.