* It's subtle, but ''Overkill'' has the relationship between Isaac and G. They start off on rocky terms--as an EstablishingCharacterMoment, Isaac's first words to G are "What's up, [[ClusterFBomb motherfucker]]?!" The first few chapters are punctuated with Isaac badmouthing G and G making snarky, sarcastic responses. But they slowly warm up to each other, working together to stop the mutant outbreak as well as avenge [[spoiler:the death of Isaac's father]], and by the final chapter, Isaac proudly proclaims that G's name "stands for 'genocide', motherfucker!" and G realizes that Isaac, underneath his macho exterior and constant foulmouthing of everyone, truly likes him as a friend. The final shot before the game ends is [[spoiler:the pilot of the rescue helicopter they're on being revealed to be a mutant, and what do Isaac and G do? [[AwesomeMoments They grab their guns and fire away, in unison.]]]]