Video game crossovers occur when characters, settings, or gameplay elements from different video games come together in a single title. This can include characters from various franchises, such as Super Mario and Sonic the Hedgehog, appearing in a shared game, often leading to unique interactions and gameplay experiences. Crossovers can be found in various genres, including fighting games, platformers, and role-playing games. These collaborations can enhance fan engagement and introduce players to new franchises. Popular crossover games, like Super Smash Bros., allow players to pit their favorite characters against each other, while others, like Kingdom Hearts, blend different storylines and worlds into a cohesive narrative.