Well, 'Rumbling Hearts Visual Novel' stands out for its music and sound effects too. The background music sets the perfect atmosphere for each scene. The sound effects, like the gentle rain when a sad scene is on or the bustling noise in a crowded place, add to the realism and immersion of the game.
Mikasa and Eren don't kiss in the manga. The focus of their connection lies in different aspects of their shared experiences and the evolving plot rather than a romantic kiss.