Which of these gaming brand collaborations actually happened and resulted in an official released product?

Brand collaborations in gaming have created some of the most memorable crossover experiences in entertainment history. From unexpected character appearances to genre-bending mashups, these partnerships have redefined what's possible in virtual worlds. Test your knowledge of these landmark gaming collaborations that changed the industry landscape and delighted fans worldwide. Can you identify which famous crossover actually happened versus the ones that sound plausible but never materialized?

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Nintendo x LEGO: Super Mario interactive building sets featuring electronic Mario figures that react to special LEGO bricks
Rockstar Games x Disney: 'Grand Theft Auto: Toontown' spin-off featuring family-friendly missions with cartoon physics and Disney character cameos
Blizzard x Valve: 'Portal to Azeroth' expansion allowing World of Warcraft players to travel between Azeroth and the Half-Life universe
PlayStation x Nike: 'DualSense Jordans' with adaptive pressure technology in the soles that syncs with PS5 games via Bluetooth