Success depends entirely on "collaboration." One player might control the tilt of the world, while another controls the ball's speed or jumping ability.
When you download a game from the eShop, your Switch is technically installing an NSP file.
Use the magnifying glass icon and type in "Collab Ball" .
Once you find it, you can buy it using your Nintendo Account funds or a credit card. A Note on "NSP" Files
is a cooperative physics-based puzzle game designed for local multiplayer. The core hook is teamwork: you and your friends control different aspects of a ball's movement—or multiple balls—to navigate through increasingly complex obstacle courses.
Be cautious of sites offering NSP downloads for free. These are often used for "jailbroken" or modded consoles, which can lead to your Nintendo Account being banned from online services or expose your system to malware.
It’s a mix of precision movement and chaotic communication. Think Overcooked meets a marble run.