What video game, developed by Sega Sports R&D, was the first to feature characters from both the Mario and Sonic the Hedgehog video game franchises?
Mario & Sonic at the Olympic Games
Sega Superstars Tennis
Super Mario All-Stars
Sega Superstars Tennis
Super Mario All-Stars
Sega Superstars Tennis
Super Mario All-Stars
Sega Superstars Tennis
Sonic & Mario Tennis
Super Mario Bros. 2
Mario vs. Sonic
Super Mario Bros. 3
Super Mario All-Stars
Sega Superstars Tennis
Sonic & Mario Tennis
Super Mario Bros. 2
Super Mario All-Stars
Super Mario Bros. 3
Mario & Sonic
Mario vs. Sonic
Sonic & Sega Racing
Sega Superstars Tennis
Super Mario All-Stars
Sonic & Mario Tennis
Super Mario Bros. 2
Super Mario Bros. 3
Sega Superstars Tennis
Sonic & Sega Racing
Mario & Sonic
Super Mario All-Stars
Super Mario Bros. 2
Sonic 3D Blast
Super Mario Bros. 3
Super Mario World
Sonic & Mario Tennis
Sega Superstars Tennis
Super Mario Strikers
Super Mario All-Stars
Sonic Mania
Sonic & Sega Racing
Sonic and Mario Tennis
Super Mario Bros. 2
Super Mario World
Sonic 3D Blast
Super Mario Bros. 3
Mario & Sonic
Sega Superstars Tennis
Super Mario Kart 64
Sonic & Mario Tennis
Super Mario All-Stars
Sega Superstar Racing
Sonic and Mario Tennis
Super Mario Bros. 64
Super Mario World
Super Mario Bros.
Super Mario Bros. 2
Super Mario Bros. 3
Sonic & Sega Racing
Sonic 3D Blast
Sega Superstars Soccer
Super Mario Kart 64
Mario & Sonic
Super Mario Kart
Sega Superstars Tennis
Super Mario All-Stars
Super Mario Strikers
Super Mario World
Sonic and Mario Tennis
Super Mario Bros. 64
Super Mario Bros.
Sonic & Mario Tennis
Super Mario Bros. 2
Super Mario Bros. 3
Sonic 3D Blast
Sonic & Sega Racing
Sega Superstar Racing
Super Mario Kart
Sega Superstars Baseball
Sega Superstars Tennis
Super Mario World
Super Mario All-Stars
Super Mario Kart 64
Super Mario Bros. 64
Super Mario Bros.
Mario & Sonic
Super Mario Strikers
Super Mario Bros. 2
Super Mario Bros. 3
Sonic and Mario Tennis
Sega Superstars Soccer
Sonic & Mario Tennis
Sega Superstar Racing
Super Mario World
Sonic 3D Blast
Sonic the Hedgehog 2
Sega Superstar Soccer
Sega Superstars Baseball
Sega Superstars Tennis
Sonic the Hedgehog 3
Super Mario Bros.
Super Mario Bros. 64
Super Mario Kart
Super Mario Bros. 2
Super Mario All-Stars
Super Mario Bros. 3
Tetris & Sonic
Super Mario Kart 64
Sega Super Soccer
Sega Superstars Soccer
Mario & Sonic
Sega Superstar Racing
Super Mario World
Super Mario 3D World
Nights into Dreams
Sonic and Mario Tennis
Super Mario Strikers
Sonic & Mario Tennis
Sega Superstar Soccer
Sega Superstars Baseball
Super Mario Bros.
Super Mario Bros. 64
Sonic 3D Blast
Sonic & Sega Racing
Sega Sports Superstars
Sega Superstars Tennis
Super Mario All-Stars
Sonic the Hedgehog 2
Super Mario Bros. 2
Sega Super Soccer
Super Mario Kart 64
Super Mario Bros. 3
Super Mario World
Sega Superstars Soccer
Sonic the Hedgehog 3
Super Mario Kart
Sega Superstar Racing
Sega Sports Mix
Super Mario 3D World
Super Mario Tennis
Mega Man X2
Super Mario Bros. 4
Tetris & Mario
Sega Superstar Soccer
Mario & Sonic
Sega Superstars Baseball
Super Mario Bros.
Super Mario Strikers
Sega Superstars Tennis
Sonic and Mario Tennis
Super Mario 3D Land
Sega Super Soccer
Sega Sports Superstars
Super Mario Bros. 2
Super Mario World
Super Mario All-Stars
Super Mario Kart
Sonic 3D Blast
Sega Sports Mix
Tetris and Sonic
Super Mario Kart 64
Super Mario Bros. 64
Mega Man X2
Sonic the Hedgehog 2
Sonic and Mario Tennis
Sonic the Hedgehog 3
Super Mario Tennis
Super Mario World
Super Mario 3D Land
Mario & Sonic
Sonic the Hedgehog
Sega Superstars Tennis
Super Mario All-Stars
Super Mario 3D World
Super Mario Bros. 3
Super Mario Bros. 2
Sega Superstar Racing
Sega Superstar Soccer
Sega Superstars Soccer
Super Mario Kart 64
Super Mario Strikers
Sega Soccer Slam
Super Mario Kart
Mega Man X
Sega Superstar Baseball
Sega Super Soccer
Sega Sports Mix
Super Mario Bros.
Sega Sports Superstars
Mega Man & Sonic
Super Mario Tennis
Super Mario World
Mega Man & Sonic Racing
Sega Superstars Baseball
Sega Superstars Tennis
Super Mario Bros. 3
Mega Man X2
Super Mario Bros. 2
Sonic and Mario Tennis
Tetris and Super Mario
Super Mario All-Stars
Sonic the Hedgehog