Bandai Namco has partnered with Nintendo a lot lately. In addition to developing the Mario Kart arcade games, they co-developed Super Smash Bros. Ultimate as well as Smash bros for Wii U and 3DS.. It turns out however, that the collaboration goes a lot further than was known and also included assisted development of other Nintendo games, including Mario Kart Tour, Mario Kart 8 Deluxe and ARMS. Here is Bandai Namco’s breakdown for the work they did on each title, from their recently updated products page:
Mario Kart Tour
For the smartphone game “Mario Kart Tour”, released by Nintendo on September 25th, 2019, we partially implemented in-games and 3D visual assets for courses, characters and machines. We also produced approximately half of bonus challenges.
ARMS
For Nintendo Switch game “ARMS”, released in July 16, 2017, we produced approximately half of visual assets for stages, fighters and arms.
Mario Kart 8 Deluxe
For Nintendo Switch game “MARIO KART 8 DELUXE”, released in April 28, 2017, we produced approximately half of visual assets for courses, characters and machine parts.