Nintendo has been secretive of late about which developers are behind many of its key first-party games. Today, via data miner Luigi Blood on social media platform X, it was revealed that the developer behind Nintendo World Championships: NES Edition is none other than Theatrhythm developer, Indieszero. Indieszero worked together with Square Enix to produce the acclaimed series of rhythm games. Nintendo World Championships: NES Edition launches on Nintendo Switch on July 18th.